Home / 3,130.02-4,318.11-2,655.90

Finding the Fourth Proportional to 3,130.02, 4,318.11 and 2,655.90

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Solution

The fourth proportional to 3,130.02, 4,318.11 and 2,655.90 is: 3,664.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.02 : 4,318.11 = 2,655.90 : x
  2. Step 2: Convert to fraction form
    3,130.02/4,318.11 = 2,655.90/x
  3. Step 3: Cross multiply
    3,130.02x = 4,318.11 × 2,655.90
  4. Step 4: Simplify right side
    3,130.02x = 11,468,468.35
  5. Step 5: Solve for x
    x = 11,468,468.35/3,130.02
  6. Step 6: Final answer
    x = 3,664.02

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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.