Home / 2,031.31-2,803.26-1,147.06

Finding the Fourth Proportional to 2,031.31, 2,803.26 and 1,147.06

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Solution

The fourth proportional to 2,031.31, 2,803.26 and 1,147.06 is: 1,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.31 : 2,803.26 = 1,147.06 : x
  2. Step 2: Convert to fraction form
    2,031.31/2,803.26 = 1,147.06/x
  3. Step 3: Cross multiply
    2,031.31x = 2,803.26 × 1,147.06
  4. Step 4: Simplify right side
    2,031.31x = 3,215,507.42
  5. Step 5: Solve for x
    x = 3,215,507.42/2,031.31
  6. Step 6: Final answer
    x = 1,582.97

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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.