Home / 5,515.70-7,606.47-4,254.75

Finding the Fourth Proportional to 5,515.70, 7,606.47 and 4,254.75

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Solution

The fourth proportional to 5,515.70, 7,606.47 and 4,254.75 is: 5,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.70 : 7,606.47 = 4,254.75 : x
  2. Step 2: Convert to fraction form
    5,515.70/7,606.47 = 4,254.75/x
  3. Step 3: Cross multiply
    5,515.70x = 7,606.47 × 4,254.75
  4. Step 4: Simplify right side
    5,515.70x = 32,363,628.23
  5. Step 5: Solve for x
    x = 32,363,628.23/5,515.70
  6. Step 6: Final answer
    x = 5,867.55

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Half scale
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Double scale
Find fourth proportional to 5,516.70, 7,607.85 and 4,255.75
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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.