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Finding the Fourth Proportional to 5,271.65, 7,905.02 and 1,572.92

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Solution

The fourth proportional to 5,271.65, 7,905.02 and 1,572.92 is: 2,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.65 : 7,905.02 = 1,572.92 : x
  2. Step 2: Convert to fraction form
    5,271.65/7,905.02 = 1,572.92/x
  3. Step 3: Cross multiply
    5,271.65x = 7,905.02 × 1,572.92
  4. Step 4: Simplify right side
    5,271.65x = 12,433,916.67
  5. Step 5: Solve for x
    x = 12,433,916.67/5,271.65
  6. Step 6: Final answer
    x = 2,358.64

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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.