Home / 1,177.20-1,624.53-653.23

Finding the Fourth Proportional to 1,177.20, 1,624.53 and 653.23

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Solution

The fourth proportional to 1,177.20, 1,624.53 and 653.23 is: 901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.20 : 1,624.53 = 653.23 : x
  2. Step 2: Convert to fraction form
    1,177.20/1,624.53 = 653.23/x
  3. Step 3: Cross multiply
    1,177.20x = 1,624.53 × 653.23
  4. Step 4: Simplify right side
    1,177.20x = 1,061,191.73
  5. Step 5: Solve for x
    x = 1,061,191.73/1,177.20
  6. Step 6: Final answer
    x = 901.45

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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.