Home / 1,712.40-2,567.70-1,127.73

Finding the Fourth Proportional to 1,712.40, 2,567.70 and 1,127.73

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Solution

The fourth proportional to 1,712.40, 2,567.70 and 1,127.73 is: 1,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.40 : 2,567.70 = 1,127.73 : x
  2. Step 2: Convert to fraction form
    1,712.40/2,567.70 = 1,127.73/x
  3. Step 3: Cross multiply
    1,712.40x = 2,567.70 × 1,127.73
  4. Step 4: Simplify right side
    1,712.40x = 2,895,672.32
  5. Step 5: Solve for x
    x = 2,895,672.32/1,712.40
  6. Step 6: Final answer
    x = 1,691.00

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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.