Home / 3,158.61-4,357.83-2,040.30

Finding the Fourth Proportional to 3,158.61, 4,357.83 and 2,040.30

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Solution

The fourth proportional to 3,158.61, 4,357.83 and 2,040.30 is: 2,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.61 : 4,357.83 = 2,040.30 : x
  2. Step 2: Convert to fraction form
    3,158.61/4,357.83 = 2,040.30/x
  3. Step 3: Cross multiply
    3,158.61x = 4,357.83 × 2,040.30
  4. Step 4: Simplify right side
    3,158.61x = 8,891,280.55
  5. Step 5: Solve for x
    x = 8,891,280.55/3,158.61
  6. Step 6: Final answer
    x = 2,814.93

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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.