Home / 1,177.20-1,624.36-653.16

Finding the Fourth Proportional to 1,177.20, 1,624.36 and 653.16

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Solution

The fourth proportional to 1,177.20, 1,624.36 and 653.16 is: 901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.20 : 1,624.36 = 653.16 : x
  2. Step 2: Convert to fraction form
    1,177.20/1,624.36 = 653.16/x
  3. Step 3: Cross multiply
    1,177.20x = 1,624.36 × 653.16
  4. Step 4: Simplify right side
    1,177.20x = 1,060,966.98
  5. Step 5: Solve for x
    x = 1,060,966.98/1,177.20
  6. Step 6: Final answer
    x = 901.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.