Home / 1,177.12-1,624.38-653.14

Finding the Fourth Proportional to 1,177.12, 1,624.38 and 653.14

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Solution

The fourth proportional to 1,177.12, 1,624.38 and 653.14 is: 901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.12 : 1,624.38 = 653.14 : x
  2. Step 2: Convert to fraction form
    1,177.12/1,624.38 = 653.14/x
  3. Step 3: Cross multiply
    1,177.12x = 1,624.38 × 653.14
  4. Step 4: Simplify right side
    1,177.12x = 1,060,947.55
  5. Step 5: Solve for x
    x = 1,060,947.55/1,177.12
  6. Step 6: Final answer
    x = 901.31

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1.5x scale

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.