Home / 2,990.93-4,127.71-1,732.33

Finding the Fourth Proportional to 2,990.93, 4,127.71 and 1,732.33

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Solution

The fourth proportional to 2,990.93, 4,127.71 and 1,732.33 is: 2,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.93 : 4,127.71 = 1,732.33 : x
  2. Step 2: Convert to fraction form
    2,990.93/4,127.71 = 1,732.33/x
  3. Step 3: Cross multiply
    2,990.93x = 4,127.71 × 1,732.33
  4. Step 4: Simplify right side
    2,990.93x = 7,150,535.23
  5. Step 5: Solve for x
    x = 7,150,535.23/2,990.93
  6. Step 6: Final answer
    x = 2,390.74

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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.