Home / 7,130.20-9,841.02-5,037.40

Finding the Fourth Proportional to 7,130.20, 9,841.02 and 5,037.40

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Solution

The fourth proportional to 7,130.20, 9,841.02 and 5,037.40 is: 6,952.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.20 : 9,841.02 = 5,037.40 : x
  2. Step 2: Convert to fraction form
    7,130.20/9,841.02 = 5,037.40/x
  3. Step 3: Cross multiply
    7,130.20x = 9,841.02 × 5,037.40
  4. Step 4: Simplify right side
    7,130.20x = 49,573,154.15
  5. Step 5: Solve for x
    x = 49,573,154.15/7,130.20
  6. Step 6: Final answer
    x = 6,952.56

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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.