Home / 5,031.01-6,945.29-3,143.64

Finding the Fourth Proportional to 5,031.01, 6,945.29 and 3,143.64

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Solution

The fourth proportional to 5,031.01, 6,945.29 and 3,143.64 is: 4,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.01 : 6,945.29 = 3,143.64 : x
  2. Step 2: Convert to fraction form
    5,031.01/6,945.29 = 3,143.64/x
  3. Step 3: Cross multiply
    5,031.01x = 6,945.29 × 3,143.64
  4. Step 4: Simplify right side
    5,031.01x = 21,833,461.48
  5. Step 5: Solve for x
    x = 21,833,461.48/5,031.01
  6. Step 6: Final answer
    x = 4,339.78

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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.