Home / 3,721.36-5,582.16-1,124.32

Finding the Fourth Proportional to 3,721.36, 5,582.16 and 1,124.32

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Solution

The fourth proportional to 3,721.36, 5,582.16 and 1,124.32 is: 1,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.36 : 5,582.16 = 1,124.32 : x
  2. Step 2: Convert to fraction form
    3,721.36/5,582.16 = 1,124.32/x
  3. Step 3: Cross multiply
    3,721.36x = 5,582.16 × 1,124.32
  4. Step 4: Simplify right side
    3,721.36x = 6,276,134.13
  5. Step 5: Solve for x
    x = 6,276,134.13/3,721.36
  6. Step 6: Final answer
    x = 1,686.52

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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.