Home / 3,660.80-5,484.36-2,877.20

Finding the Fourth Proportional to 3,660.80, 5,484.36 and 2,877.20

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Solution

The fourth proportional to 3,660.80, 5,484.36 and 2,877.20 is: 4,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.80 : 5,484.36 = 2,877.20 : x
  2. Step 2: Convert to fraction form
    3,660.80/5,484.36 = 2,877.20/x
  3. Step 3: Cross multiply
    3,660.80x = 5,484.36 × 2,877.20
  4. Step 4: Simplify right side
    3,660.80x = 15,779,600.59
  5. Step 5: Solve for x
    x = 15,779,600.59/3,660.80
  6. Step 6: Final answer
    x = 4,310.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.