Home / 5,660.10-7,810.80-3,142.14

Finding the Fourth Proportional to 5,660.10, 7,810.80 and 3,142.14

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Solution

The fourth proportional to 5,660.10, 7,810.80 and 3,142.14 is: 4,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.10 : 7,810.80 = 3,142.14 : x
  2. Step 2: Convert to fraction form
    5,660.10/7,810.80 = 3,142.14/x
  3. Step 3: Cross multiply
    5,660.10x = 7,810.80 × 3,142.14
  4. Step 4: Simplify right side
    5,660.10x = 24,542,627.11
  5. Step 5: Solve for x
    x = 24,542,627.11/5,660.10
  6. Step 6: Final answer
    x = 4,336.08

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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.