Home / 2,990.22-4,124.97-1,747.50

Finding the Fourth Proportional to 2,990.22, 4,124.97 and 1,747.50

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Solution

The fourth proportional to 2,990.22, 4,124.97 and 1,747.50 is: 2,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.22 : 4,124.97 = 1,747.50 : x
  2. Step 2: Convert to fraction form
    2,990.22/4,124.97 = 1,747.50/x
  3. Step 3: Cross multiply
    2,990.22x = 4,124.97 × 1,747.50
  4. Step 4: Simplify right side
    2,990.22x = 7,208,385.08
  5. Step 5: Solve for x
    x = 7,208,385.08/2,990.22
  6. Step 6: Final answer
    x = 2,410.65

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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.