Home / 3,080.18-4,247.13-2,122.00

Finding the Fourth Proportional to 3,080.18, 4,247.13 and 2,122.00

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Solution

The fourth proportional to 3,080.18, 4,247.13 and 2,122.00 is: 2,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.18 : 4,247.13 = 2,122.00 : x
  2. Step 2: Convert to fraction form
    3,080.18/4,247.13 = 2,122.00/x
  3. Step 3: Cross multiply
    3,080.18x = 4,247.13 × 2,122.00
  4. Step 4: Simplify right side
    3,080.18x = 9,012,407.20
  5. Step 5: Solve for x
    x = 9,012,407.20/3,080.18
  6. Step 6: Final answer
    x = 2,925.94

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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.