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Finding the Fourth Proportional to 1,749.55, 2,624.23 and 653.83

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Solution

The fourth proportional to 1,749.55, 2,624.23 and 653.83 is: 980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.55 : 2,624.23 = 653.83 : x
  2. Step 2: Convert to fraction form
    1,749.55/2,624.23 = 653.83/x
  3. Step 3: Cross multiply
    1,749.55x = 2,624.23 × 653.83
  4. Step 4: Simplify right side
    1,749.55x = 1,715,800.30
  5. Step 5: Solve for x
    x = 1,715,800.30/1,749.55
  6. Step 6: Final answer
    x = 980.71

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1.5x scale

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.