Home / 3,720.88-5,580.56-1,124.24

Finding the Fourth Proportional to 3,720.88, 5,580.56 and 1,124.24

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Solution

The fourth proportional to 3,720.88, 5,580.56 and 1,124.24 is: 1,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.88 : 5,580.56 = 1,124.24 : x
  2. Step 2: Convert to fraction form
    3,720.88/5,580.56 = 1,124.24/x
  3. Step 3: Cross multiply
    3,720.88x = 5,580.56 × 1,124.24
  4. Step 4: Simplify right side
    3,720.88x = 6,273,888.77
  5. Step 5: Solve for x
    x = 6,273,888.77/3,720.88
  6. Step 6: Final answer
    x = 1,686.13

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1.5x scale

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.