Home / 2,621.12-3,614.06-1,781.14

Finding the Fourth Proportional to 2,621.12, 3,614.06 and 1,781.14

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Solution

The fourth proportional to 2,621.12, 3,614.06 and 1,781.14 is: 2,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.12 : 3,614.06 = 1,781.14 : x
  2. Step 2: Convert to fraction form
    2,621.12/3,614.06 = 1,781.14/x
  3. Step 3: Cross multiply
    2,621.12x = 3,614.06 × 1,781.14
  4. Step 4: Simplify right side
    2,621.12x = 6,437,146.83
  5. Step 5: Solve for x
    x = 6,437,146.83/2,621.12
  6. Step 6: Final answer
    x = 2,455.88

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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.