Home / 5,138.01-7,088.21-3,012.46

Finding the Fourth Proportional to 5,138.01, 7,088.21 and 3,012.46

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Solution

The fourth proportional to 5,138.01, 7,088.21 and 3,012.46 is: 4,155.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.01 : 7,088.21 = 3,012.46 : x
  2. Step 2: Convert to fraction form
    5,138.01/7,088.21 = 3,012.46/x
  3. Step 3: Cross multiply
    5,138.01x = 7,088.21 × 3,012.46
  4. Step 4: Simplify right side
    5,138.01x = 21,352,949.10
  5. Step 5: Solve for x
    x = 21,352,949.10/5,138.01
  6. Step 6: Final answer
    x = 4,155.88

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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.