Home / 2,988.12-4,480.65-1,755.90

Finding the Fourth Proportional to 2,988.12, 4,480.65 and 1,755.90

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Solution

The fourth proportional to 2,988.12, 4,480.65 and 1,755.90 is: 2,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.12 : 4,480.65 = 1,755.90 : x
  2. Step 2: Convert to fraction form
    2,988.12/4,480.65 = 1,755.90/x
  3. Step 3: Cross multiply
    2,988.12x = 4,480.65 × 1,755.90
  4. Step 4: Simplify right side
    2,988.12x = 7,867,573.34
  5. Step 5: Solve for x
    x = 7,867,573.34/2,988.12
  6. Step 6: Final answer
    x = 2,632.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.