Home / 2,867.48-3,957.28-2,158.04

Finding the Fourth Proportional to 2,867.48, 3,957.28 and 2,158.04

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Solution

The fourth proportional to 2,867.48, 3,957.28 and 2,158.04 is: 2,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.48 : 3,957.28 = 2,158.04 : x
  2. Step 2: Convert to fraction form
    2,867.48/3,957.28 = 2,158.04/x
  3. Step 3: Cross multiply
    2,867.48x = 3,957.28 × 2,158.04
  4. Step 4: Simplify right side
    2,867.48x = 8,539,957.74
  5. Step 5: Solve for x
    x = 8,539,957.74/2,867.48
  6. Step 6: Final answer
    x = 2,978.22

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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.