Home / 2,642.60-3,635.61-2,569.70

Finding the Fourth Proportional to 2,642.60, 3,635.61 and 2,569.70

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Solution

The fourth proportional to 2,642.60, 3,635.61 and 2,569.70 is: 3,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.60 : 3,635.61 = 2,569.70 : x
  2. Step 2: Convert to fraction form
    2,642.60/3,635.61 = 2,569.70/x
  3. Step 3: Cross multiply
    2,642.60x = 3,635.61 × 2,569.70
  4. Step 4: Simplify right side
    2,642.60x = 9,342,427.02
  5. Step 5: Solve for x
    x = 9,342,427.02/2,642.60
  6. Step 6: Final answer
    x = 3,535.32

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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.