Home / 5,156.16-7,114.43-3,031.12

Finding the Fourth Proportional to 5,156.16, 7,114.43 and 3,031.12

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Solution

The fourth proportional to 5,156.16, 7,114.43 and 3,031.12 is: 4,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.16 : 7,114.43 = 3,031.12 : x
  2. Step 2: Convert to fraction form
    5,156.16/7,114.43 = 3,031.12/x
  3. Step 3: Cross multiply
    5,156.16x = 7,114.43 × 3,031.12
  4. Step 4: Simplify right side
    5,156.16x = 21,564,707.53
  5. Step 5: Solve for x
    x = 21,564,707.53/5,156.16
  6. Step 6: Final answer
    x = 4,182.32

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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.