Home / 3,150.14-4,728.10-3,138.38

Finding the Fourth Proportional to 3,150.14, 4,728.10 and 3,138.38

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Solution

The fourth proportional to 3,150.14, 4,728.10 and 3,138.38 is: 4,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.14 : 4,728.10 = 3,138.38 : x
  2. Step 2: Convert to fraction form
    3,150.14/4,728.10 = 3,138.38/x
  3. Step 3: Cross multiply
    3,150.14x = 4,728.10 × 3,138.38
  4. Step 4: Simplify right side
    3,150.14x = 14,838,574.48
  5. Step 5: Solve for x
    x = 14,838,574.48/3,150.14
  6. Step 6: Final answer
    x = 4,710.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.