Home / 3,720.96-5,582.52-1,124.28

Finding the Fourth Proportional to 3,720.96, 5,582.52 and 1,124.28

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Solution

The fourth proportional to 3,720.96, 5,582.52 and 1,124.28 is: 1,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.96 : 5,582.52 = 1,124.28 : x
  2. Step 2: Convert to fraction form
    3,720.96/5,582.52 = 1,124.28/x
  3. Step 3: Cross multiply
    3,720.96x = 5,582.52 × 1,124.28
  4. Step 4: Simplify right side
    3,720.96x = 6,276,315.59
  5. Step 5: Solve for x
    x = 6,276,315.59/3,720.96
  6. Step 6: Final answer
    x = 1,686.75

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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.