Home / 3,721.60-5,582.94-1,125.28

Finding the Fourth Proportional to 3,721.60, 5,582.94 and 1,125.28

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Solution

The fourth proportional to 3,721.60, 5,582.94 and 1,125.28 is: 1,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.60 : 5,582.94 = 1,125.28 : x
  2. Step 2: Convert to fraction form
    3,721.60/5,582.94 = 1,125.28/x
  3. Step 3: Cross multiply
    3,721.60x = 5,582.94 × 1,125.28
  4. Step 4: Simplify right side
    3,721.60x = 6,282,370.72
  5. Step 5: Solve for x
    x = 6,282,370.72/3,721.60
  6. Step 6: Final answer
    x = 1,688.08

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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.