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Finding the Fourth Proportional to 6,652.79, 9,979.47 and 2,491.71

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Solution

The fourth proportional to 6,652.79, 9,979.47 and 2,491.71 is: 3,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652.79 : 9,979.47 = 2,491.71 : x
  2. Step 2: Convert to fraction form
    6,652.79/9,979.47 = 2,491.71/x
  3. Step 3: Cross multiply
    6,652.79x = 9,979.47 × 2,491.71
  4. Step 4: Simplify right side
    6,652.79x = 24,865,945.19
  5. Step 5: Solve for x
    x = 24,865,945.19/6,652.79
  6. Step 6: Final answer
    x = 3,737.67

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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.