Home / 2,560.32-3,532.56-2,163.60

Finding the Fourth Proportional to 2,560.32, 3,532.56 and 2,163.60

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Solution

The fourth proportional to 2,560.32, 3,532.56 and 2,163.60 is: 2,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.32 : 3,532.56 = 2,163.60 : x
  2. Step 2: Convert to fraction form
    2,560.32/3,532.56 = 2,163.60/x
  3. Step 3: Cross multiply
    2,560.32x = 3,532.56 × 2,163.60
  4. Step 4: Simplify right side
    2,560.32x = 7,643,046.82
  5. Step 5: Solve for x
    x = 7,643,046.82/2,560.32
  6. Step 6: Final answer
    x = 2,985.19

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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.