Home / 3,421.61-4,721.81-1,849.70

Finding the Fourth Proportional to 3,421.61, 4,721.81 and 1,849.70

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Solution

The fourth proportional to 3,421.61, 4,721.81 and 1,849.70 is: 2,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.61 : 4,721.81 = 1,849.70 : x
  2. Step 2: Convert to fraction form
    3,421.61/4,721.81 = 1,849.70/x
  3. Step 3: Cross multiply
    3,421.61x = 4,721.81 × 1,849.70
  4. Step 4: Simplify right side
    3,421.61x = 8,733,908.35
  5. Step 5: Solve for x
    x = 8,733,908.35/3,421.61
  6. Step 6: Final answer
    x = 2,552.58

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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.