Home / 3,883.15-5,359.49-2,312.11

Finding the Fourth Proportional to 3,883.15, 5,359.49 and 2,312.11

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Solution

The fourth proportional to 3,883.15, 5,359.49 and 2,312.11 is: 3,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.15 : 5,359.49 = 2,312.11 : x
  2. Step 2: Convert to fraction form
    3,883.15/5,359.49 = 2,312.11/x
  3. Step 3: Cross multiply
    3,883.15x = 5,359.49 × 2,312.11
  4. Step 4: Simplify right side
    3,883.15x = 12,391,730.42
  5. Step 5: Solve for x
    x = 12,391,730.42/3,883.15
  6. Step 6: Final answer
    x = 3,191.15

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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.