Home / 5,165.18-7,127.98-2,807.32

Finding the Fourth Proportional to 5,165.18, 7,127.98 and 2,807.32

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Solution

The fourth proportional to 5,165.18, 7,127.98 and 2,807.32 is: 3,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.18 : 7,127.98 = 2,807.32 : x
  2. Step 2: Convert to fraction form
    5,165.18/7,127.98 = 2,807.32/x
  3. Step 3: Cross multiply
    5,165.18x = 7,127.98 × 2,807.32
  4. Step 4: Simplify right side
    5,165.18x = 20,010,525.13
  5. Step 5: Solve for x
    x = 20,010,525.13/5,165.18
  6. Step 6: Final answer
    x = 3,874.12

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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.