Home / 3,141.02-4,332.72-2,078.80

Finding the Fourth Proportional to 3,141.02, 4,332.72 and 2,078.80

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Solution

The fourth proportional to 3,141.02, 4,332.72 and 2,078.80 is: 2,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.02 : 4,332.72 = 2,078.80 : x
  2. Step 2: Convert to fraction form
    3,141.02/4,332.72 = 2,078.80/x
  3. Step 3: Cross multiply
    3,141.02x = 4,332.72 × 2,078.80
  4. Step 4: Simplify right side
    3,141.02x = 9,006,858.34
  5. Step 5: Solve for x
    x = 9,006,858.34/3,141.02
  6. Step 6: Final answer
    x = 2,867.49

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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.