Home / 3,359.40-5,012.13-2,989.80

Finding the Fourth Proportional to 3,359.40, 5,012.13 and 2,989.80

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Solution

The fourth proportional to 3,359.40, 5,012.13 and 2,989.80 is: 4,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.40 : 5,012.13 = 2,989.80 : x
  2. Step 2: Convert to fraction form
    3,359.40/5,012.13 = 2,989.80/x
  3. Step 3: Cross multiply
    3,359.40x = 5,012.13 × 2,989.80
  4. Step 4: Simplify right side
    3,359.40x = 14,985,266.27
  5. Step 5: Solve for x
    x = 14,985,266.27/3,359.40
  6. Step 6: Final answer
    x = 4,460.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.