Home / 2,127.90-3,186.45-1,577.10

Finding the Fourth Proportional to 2,127.90, 3,186.45 and 1,577.10

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Solution

The fourth proportional to 2,127.90, 3,186.45 and 1,577.10 is: 2,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.90 : 3,186.45 = 1,577.10 : x
  2. Step 2: Convert to fraction form
    2,127.90/3,186.45 = 1,577.10/x
  3. Step 3: Cross multiply
    2,127.90x = 3,186.45 × 1,577.10
  4. Step 4: Simplify right side
    2,127.90x = 5,025,350.30
  5. Step 5: Solve for x
    x = 5,025,350.30/2,127.90
  6. Step 6: Final answer
    x = 2,361.65

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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.