Home / 4,152.80-5,731.76-2,385.38

Finding the Fourth Proportional to 4,152.80, 5,731.76 and 2,385.38

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Solution

The fourth proportional to 4,152.80, 5,731.76 and 2,385.38 is: 3,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,152.80 : 5,731.76 = 2,385.38 : x
  2. Step 2: Convert to fraction form
    4,152.80/5,731.76 = 2,385.38/x
  3. Step 3: Cross multiply
    4,152.80x = 5,731.76 × 2,385.38
  4. Step 4: Simplify right side
    4,152.80x = 13,672,445.96
  5. Step 5: Solve for x
    x = 13,672,445.96/4,152.80
  6. Step 6: Final answer
    x = 3,292.34

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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.