Home / 2,990.59-4,127.25-2,283.46

Finding the Fourth Proportional to 2,990.59, 4,127.25 and 2,283.46

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Solution

The fourth proportional to 2,990.59, 4,127.25 and 2,283.46 is: 3,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.59 : 4,127.25 = 2,283.46 : x
  2. Step 2: Convert to fraction form
    2,990.59/4,127.25 = 2,283.46/x
  3. Step 3: Cross multiply
    2,990.59x = 4,127.25 × 2,283.46
  4. Step 4: Simplify right side
    2,990.59x = 9,424,408.53
  5. Step 5: Solve for x
    x = 9,424,408.53/2,990.59
  6. Step 6: Final answer
    x = 3,151.36

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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.