Home / 1,267.10-1,901.18-487.34

Finding the Fourth Proportional to 1,267.10, 1,901.18 and 487.34

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Solution

The fourth proportional to 1,267.10, 1,901.18 and 487.34 is: 731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.10 : 1,901.18 = 487.34 : x
  2. Step 2: Convert to fraction form
    1,267.10/1,901.18 = 487.34/x
  3. Step 3: Cross multiply
    1,267.10x = 1,901.18 × 487.34
  4. Step 4: Simplify right side
    1,267.10x = 926,521.06
  5. Step 5: Solve for x
    x = 926,521.06/1,267.10
  6. Step 6: Final answer
    x = 731.21

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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.