Home / 6,515.59-9,788.90-4,180.16

Finding the Fourth Proportional to 6,515.59, 9,788.90 and 4,180.16

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Solution

The fourth proportional to 6,515.59, 9,788.90 and 4,180.16 is: 6,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.59 : 9,788.90 = 4,180.16 : x
  2. Step 2: Convert to fraction form
    6,515.59/9,788.90 = 4,180.16/x
  3. Step 3: Cross multiply
    6,515.59x = 9,788.90 × 4,180.16
  4. Step 4: Simplify right side
    6,515.59x = 40,919,140.25
  5. Step 5: Solve for x
    x = 40,919,140.25/6,515.59
  6. Step 6: Final answer
    x = 6,280.19

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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.