Home / 2,240.35-3,091.04-1,531.60

Finding the Fourth Proportional to 2,240.35, 3,091.04 and 1,531.60

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Solution

The fourth proportional to 2,240.35, 3,091.04 and 1,531.60 is: 2,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.35 : 3,091.04 = 1,531.60 : x
  2. Step 2: Convert to fraction form
    2,240.35/3,091.04 = 1,531.60/x
  3. Step 3: Cross multiply
    2,240.35x = 3,091.04 × 1,531.60
  4. Step 4: Simplify right side
    2,240.35x = 4,734,229.21
  5. Step 5: Solve for x
    x = 4,734,229.21/2,240.35
  6. Step 6: Final answer
    x = 2,113.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.