Home / 2,591.20-3,568.08-2,215.36

Finding the Fourth Proportional to 2,591.20, 3,568.08 and 2,215.36

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Solution

The fourth proportional to 2,591.20, 3,568.08 and 2,215.36 is: 3,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.20 : 3,568.08 = 2,215.36 : x
  2. Step 2: Convert to fraction form
    2,591.20/3,568.08 = 2,215.36/x
  3. Step 3: Cross multiply
    2,591.20x = 3,568.08 × 2,215.36
  4. Step 4: Simplify right side
    2,591.20x = 7,904,581.71
  5. Step 5: Solve for x
    x = 7,904,581.71/2,591.20
  6. Step 6: Final answer
    x = 3,050.55

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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.