Home / 2,359.57-3,255.29-1,520.21

Finding the Fourth Proportional to 2,359.57, 3,255.29 and 1,520.21

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Solution

The fourth proportional to 2,359.57, 3,255.29 and 1,520.21 is: 2,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.57 : 3,255.29 = 1,520.21 : x
  2. Step 2: Convert to fraction form
    2,359.57/3,255.29 = 1,520.21/x
  3. Step 3: Cross multiply
    2,359.57x = 3,255.29 × 1,520.21
  4. Step 4: Simplify right side
    2,359.57x = 4,948,708.13
  5. Step 5: Solve for x
    x = 4,948,708.13/2,359.57
  6. Step 6: Final answer
    x = 2,097.30

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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.