Home / 7,801.28-10,765.77-4,216.23

Finding the Fourth Proportional to 7,801.28, 10,765.77 and 4,216.23

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Solution

The fourth proportional to 7,801.28, 10,765.77 and 4,216.23 is: 5,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.28 : 10,765.77 = 4,216.23 : x
  2. Step 2: Convert to fraction form
    7,801.28/10,765.77 = 4,216.23/x
  3. Step 3: Cross multiply
    7,801.28x = 10,765.77 × 4,216.23
  4. Step 4: Simplify right side
    7,801.28x = 45,390,915.63
  5. Step 5: Solve for x
    x = 45,390,915.63/7,801.28
  6. Step 6: Final answer
    x = 5,818.39

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Half scale
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Double scale
Find fourth proportional to 7,802.28, 10,767.15 and 4,217.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.