Home / 3,957.78-5,460.98-2,385.98

Finding the Fourth Proportional to 3,957.78, 5,460.98 and 2,385.98

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Solution

The fourth proportional to 3,957.78, 5,460.98 and 2,385.98 is: 3,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.78 : 5,460.98 = 2,385.98 : x
  2. Step 2: Convert to fraction form
    3,957.78/5,460.98 = 2,385.98/x
  3. Step 3: Cross multiply
    3,957.78x = 5,460.98 × 2,385.98
  4. Step 4: Simplify right side
    3,957.78x = 13,029,789.06
  5. Step 5: Solve for x
    x = 13,029,789.06/3,957.78
  6. Step 6: Final answer
    x = 3,292.20

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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.