Home / 5,031.17-6,939.84-3,116.53

Finding the Fourth Proportional to 5,031.17, 6,939.84 and 3,116.53

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Solution

The fourth proportional to 5,031.17, 6,939.84 and 3,116.53 is: 4,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.17 : 6,939.84 = 3,116.53 : x
  2. Step 2: Convert to fraction form
    5,031.17/6,939.84 = 3,116.53/x
  3. Step 3: Cross multiply
    5,031.17x = 6,939.84 × 3,116.53
  4. Step 4: Simplify right side
    5,031.17x = 21,628,219.56
  5. Step 5: Solve for x
    x = 21,628,219.56/5,031.17
  6. Step 6: Final answer
    x = 4,298.84

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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.