Home / 3,957.65-5,460.81-2,385.86

Finding the Fourth Proportional to 3,957.65, 5,460.81 and 2,385.86

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Solution

The fourth proportional to 3,957.65, 5,460.81 and 2,385.86 is: 3,292.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.65 : 5,460.81 = 2,385.86 : x
  2. Step 2: Convert to fraction form
    3,957.65/5,460.81 = 2,385.86/x
  3. Step 3: Cross multiply
    3,957.65x = 5,460.81 × 2,385.86
  4. Step 4: Simplify right side
    3,957.65x = 13,028,728.15
  5. Step 5: Solve for x
    x = 13,028,728.15/3,957.65
  6. Step 6: Final answer
    x = 3,292.04

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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.