Home / 1,116.31-1,674.63-1,047.97

Finding the Fourth Proportional to 1,116.31, 1,674.63 and 1,047.97

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Solution

The fourth proportional to 1,116.31, 1,674.63 and 1,047.97 is: 1,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.31 : 1,674.63 = 1,047.97 : x
  2. Step 2: Convert to fraction form
    1,116.31/1,674.63 = 1,047.97/x
  3. Step 3: Cross multiply
    1,116.31x = 1,674.63 × 1,047.97
  4. Step 4: Simplify right side
    1,116.31x = 1,754,962.00
  5. Step 5: Solve for x
    x = 1,754,962.00/1,116.31
  6. Step 6: Final answer
    x = 1,572.11

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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.