Home / 3,707.46-5,111.76-2,821.74

Finding the Fourth Proportional to 3,707.46, 5,111.76 and 2,821.74

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Solution

The fourth proportional to 3,707.46, 5,111.76 and 2,821.74 is: 3,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.46 : 5,111.76 = 2,821.74 : x
  2. Step 2: Convert to fraction form
    3,707.46/5,111.76 = 2,821.74/x
  3. Step 3: Cross multiply
    3,707.46x = 5,111.76 × 2,821.74
  4. Step 4: Simplify right side
    3,707.46x = 14,424,057.66
  5. Step 5: Solve for x
    x = 14,424,057.66/3,707.46
  6. Step 6: Final answer
    x = 3,890.55

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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.