Home / 2,031.28-2,803.17-1,147.16

Finding the Fourth Proportional to 2,031.28, 2,803.17 and 1,147.16

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Solution

The fourth proportional to 2,031.28, 2,803.17 and 1,147.16 is: 1,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.28 : 2,803.17 = 1,147.16 : x
  2. Step 2: Convert to fraction form
    2,031.28/2,803.17 = 1,147.16/x
  3. Step 3: Cross multiply
    2,031.28x = 2,803.17 × 1,147.16
  4. Step 4: Simplify right side
    2,031.28x = 3,215,695.81
  5. Step 5: Solve for x
    x = 3,215,695.81/2,031.28
  6. Step 6: Final answer
    x = 1,583.09

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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.