Home / 3,115.17-4,298.99-1,717.92

Finding the Fourth Proportional to 3,115.17, 4,298.99 and 1,717.92

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Solution

The fourth proportional to 3,115.17, 4,298.99 and 1,717.92 is: 2,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.17 : 4,298.99 = 1,717.92 : x
  2. Step 2: Convert to fraction form
    3,115.17/4,298.99 = 1,717.92/x
  3. Step 3: Cross multiply
    3,115.17x = 4,298.99 × 1,717.92
  4. Step 4: Simplify right side
    3,115.17x = 7,385,312.31
  5. Step 5: Solve for x
    x = 7,385,312.31/3,115.17
  6. Step 6: Final answer
    x = 2,370.76

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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.