Home / 7,478.28-11,217.02-2,283.75

Finding the Fourth Proportional to 7,478.28, 11,217.02 and 2,283.75

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Solution

The fourth proportional to 7,478.28, 11,217.02 and 2,283.75 is: 3,425.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.28 : 11,217.02 = 2,283.75 : x
  2. Step 2: Convert to fraction form
    7,478.28/11,217.02 = 2,283.75/x
  3. Step 3: Cross multiply
    7,478.28x = 11,217.02 × 2,283.75
  4. Step 4: Simplify right side
    7,478.28x = 25,616,858.01
  5. Step 5: Solve for x
    x = 25,616,858.01/7,478.28
  6. Step 6: Final answer
    x = 3,425.50

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Half scale
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Double scale
Find fourth proportional to 7,479.28, 11,218.51 and 2,284.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.