Home / 3,957.12-5,460.48-2,188.48

Finding the Fourth Proportional to 3,957.12, 5,460.48 and 2,188.48

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Solution

The fourth proportional to 3,957.12, 5,460.48 and 2,188.48 is: 3,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.12 : 5,460.48 = 2,188.48 : x
  2. Step 2: Convert to fraction form
    3,957.12/5,460.48 = 2,188.48/x
  3. Step 3: Cross multiply
    3,957.12x = 5,460.48 × 2,188.48
  4. Step 4: Simplify right side
    3,957.12x = 11,950,151.27
  5. Step 5: Solve for x
    x = 11,950,151.27/3,957.12
  6. Step 6: Final answer
    x = 3,019.91

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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.