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Finding the Fourth Proportional to 1,177.34, 1,624.73 and 653.37

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Solution

The fourth proportional to 1,177.34, 1,624.73 and 653.37 is: 901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.34 : 1,624.73 = 653.37 : x
  2. Step 2: Convert to fraction form
    1,177.34/1,624.73 = 653.37/x
  3. Step 3: Cross multiply
    1,177.34x = 1,624.73 × 653.37
  4. Step 4: Simplify right side
    1,177.34x = 1,061,549.84
  5. Step 5: Solve for x
    x = 1,061,549.84/1,177.34
  6. Step 6: Final answer
    x = 901.65

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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.