Home / 3,677.64-5,516.80-1,045.20

Finding the Fourth Proportional to 3,677.64, 5,516.80 and 1,045.20

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Solution

The fourth proportional to 3,677.64, 5,516.80 and 1,045.20 is: 1,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.64 : 5,516.80 = 1,045.20 : x
  2. Step 2: Convert to fraction form
    3,677.64/5,516.80 = 1,045.20/x
  3. Step 3: Cross multiply
    3,677.64x = 5,516.80 × 1,045.20
  4. Step 4: Simplify right side
    3,677.64x = 5,766,159.36
  5. Step 5: Solve for x
    x = 5,766,159.36/3,677.64
  6. Step 6: Final answer
    x = 1,567.90

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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.