Home / 5,490.16-7,577.04-3,811.12

Finding the Fourth Proportional to 5,490.16, 7,577.04 and 3,811.12

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Solution

The fourth proportional to 5,490.16, 7,577.04 and 3,811.12 is: 5,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.16 : 7,577.04 = 3,811.12 : x
  2. Step 2: Convert to fraction form
    5,490.16/7,577.04 = 3,811.12/x
  3. Step 3: Cross multiply
    5,490.16x = 7,577.04 × 3,811.12
  4. Step 4: Simplify right side
    5,490.16x = 28,877,008.68
  5. Step 5: Solve for x
    x = 28,877,008.68/5,490.16
  6. Step 6: Final answer
    x = 5,259.78

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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.