Home / 2,031.45-2,803.08-1,147.14

Finding the Fourth Proportional to 2,031.45, 2,803.08 and 1,147.14

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Solution

The fourth proportional to 2,031.45, 2,803.08 and 1,147.14 is: 1,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.45 : 2,803.08 = 1,147.14 : x
  2. Step 2: Convert to fraction form
    2,031.45/2,803.08 = 1,147.14/x
  3. Step 3: Cross multiply
    2,031.45x = 2,803.08 × 1,147.14
  4. Step 4: Simplify right side
    2,031.45x = 3,215,525.19
  5. Step 5: Solve for x
    x = 3,215,525.19/2,031.45
  6. Step 6: Final answer
    x = 1,582.87

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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.