Home / 2,560.20-3,531.76-1,970.52

Finding the Fourth Proportional to 2,560.20, 3,531.76 and 1,970.52

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Solution

The fourth proportional to 2,560.20, 3,531.76 and 1,970.52 is: 2,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.20 : 3,531.76 = 1,970.52 : x
  2. Step 2: Convert to fraction form
    2,560.20/3,531.76 = 1,970.52/x
  3. Step 3: Cross multiply
    2,560.20x = 3,531.76 × 1,970.52
  4. Step 4: Simplify right side
    2,560.20x = 6,959,403.72
  5. Step 5: Solve for x
    x = 6,959,403.72/2,560.20
  6. Step 6: Final answer
    x = 2,718.30

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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.