Home / 3,421.65-4,721.85-1,849.74

Finding the Fourth Proportional to 3,421.65, 4,721.85 and 1,849.74

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Solution

The fourth proportional to 3,421.65, 4,721.85 and 1,849.74 is: 2,552.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.65 : 4,721.85 = 1,849.74 : x
  2. Step 2: Convert to fraction form
    3,421.65/4,721.85 = 1,849.74/x
  3. Step 3: Cross multiply
    3,421.65x = 4,721.85 × 1,849.74
  4. Step 4: Simplify right side
    3,421.65x = 8,734,194.82
  5. Step 5: Solve for x
    x = 8,734,194.82/3,421.65
  6. Step 6: Final answer
    x = 2,552.63

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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.