Home / 3,915.55-5,403.36-2,423.06

Finding the Fourth Proportional to 3,915.55, 5,403.36 and 2,423.06

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Solution

The fourth proportional to 3,915.55, 5,403.36 and 2,423.06 is: 3,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.55 : 5,403.36 = 2,423.06 : x
  2. Step 2: Convert to fraction form
    3,915.55/5,403.36 = 2,423.06/x
  3. Step 3: Cross multiply
    3,915.55x = 5,403.36 × 2,423.06
  4. Step 4: Simplify right side
    3,915.55x = 13,092,665.48
  5. Step 5: Solve for x
    x = 13,092,665.48/3,915.55
  6. Step 6: Final answer
    x = 3,343.76

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1.5x scale

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.