Home / 2,612.59-3,921.17-1,515.45

Finding the Fourth Proportional to 2,612.59, 3,921.17 and 1,515.45

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Solution

The fourth proportional to 2,612.59, 3,921.17 and 1,515.45 is: 2,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.59 : 3,921.17 = 1,515.45 : x
  2. Step 2: Convert to fraction form
    2,612.59/3,921.17 = 1,515.45/x
  3. Step 3: Cross multiply
    2,612.59x = 3,921.17 × 1,515.45
  4. Step 4: Simplify right side
    2,612.59x = 5,942,337.08
  5. Step 5: Solve for x
    x = 5,942,337.08/2,612.59
  6. Step 6: Final answer
    x = 2,274.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.