Home / 1,421.32-2,133.24-1,010.92

Finding the Fourth Proportional to 1,421.32, 2,133.24 and 1,010.92

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Solution

The fourth proportional to 1,421.32, 2,133.24 and 1,010.92 is: 1,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.32 : 2,133.24 = 1,010.92 : x
  2. Step 2: Convert to fraction form
    1,421.32/2,133.24 = 1,010.92/x
  3. Step 3: Cross multiply
    1,421.32x = 2,133.24 × 1,010.92
  4. Step 4: Simplify right side
    1,421.32x = 2,156,534.98
  5. Step 5: Solve for x
    x = 2,156,534.98/1,421.32
  6. Step 6: Final answer
    x = 1,517.28

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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.