Home / 3,420.38-4,718.45-2,301.59

Finding the Fourth Proportional to 3,420.38, 4,718.45 and 2,301.59

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Solution

The fourth proportional to 3,420.38, 4,718.45 and 2,301.59 is: 3,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.38 : 4,718.45 = 2,301.59 : x
  2. Step 2: Convert to fraction form
    3,420.38/4,718.45 = 2,301.59/x
  3. Step 3: Cross multiply
    3,420.38x = 4,718.45 × 2,301.59
  4. Step 4: Simplify right side
    3,420.38x = 10,859,941.61
  5. Step 5: Solve for x
    x = 10,859,941.61/3,420.38
  6. Step 6: Final answer
    x = 3,175.07

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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.