Home / 5,325.43-7,988.16-1,861.87

Finding the Fourth Proportional to 5,325.43, 7,988.16 and 1,861.87

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Solution

The fourth proportional to 5,325.43, 7,988.16 and 1,861.87 is: 2,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.43 : 7,988.16 = 1,861.87 : x
  2. Step 2: Convert to fraction form
    5,325.43/7,988.16 = 1,861.87/x
  3. Step 3: Cross multiply
    5,325.43x = 7,988.16 × 1,861.87
  4. Step 4: Simplify right side
    5,325.43x = 14,872,915.46
  5. Step 5: Solve for x
    x = 14,872,915.46/5,325.43
  6. Step 6: Final answer
    x = 2,792.81

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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.