Home / 5,577.60-8,371.80-2,807.40

Finding the Fourth Proportional to 5,577.60, 8,371.80 and 2,807.40

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Solution

The fourth proportional to 5,577.60, 8,371.80 and 2,807.40 is: 4,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.60 : 8,371.80 = 2,807.40 : x
  2. Step 2: Convert to fraction form
    5,577.60/8,371.80 = 2,807.40/x
  3. Step 3: Cross multiply
    5,577.60x = 8,371.80 × 2,807.40
  4. Step 4: Simplify right side
    5,577.60x = 23,502,991.32
  5. Step 5: Solve for x
    x = 23,502,991.32/5,577.60
  6. Step 6: Final answer
    x = 4,213.82

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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.