Home / 3,818.60-5,727.90-1,045.28

Finding the Fourth Proportional to 3,818.60, 5,727.90 and 1,045.28

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Solution

The fourth proportional to 3,818.60, 5,727.90 and 1,045.28 is: 1,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.60 : 5,727.90 = 1,045.28 : x
  2. Step 2: Convert to fraction form
    3,818.60/5,727.90 = 1,045.28/x
  3. Step 3: Cross multiply
    3,818.60x = 5,727.90 × 1,045.28
  4. Step 4: Simplify right side
    3,818.60x = 5,987,259.31
  5. Step 5: Solve for x
    x = 5,987,259.31/3,818.60
  6. Step 6: Final answer
    x = 1,567.92

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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.