Home / 3,680.81-5,079.05-2,488.39

Finding the Fourth Proportional to 3,680.81, 5,079.05 and 2,488.39

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Solution

The fourth proportional to 3,680.81, 5,079.05 and 2,488.39 is: 3,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.81 : 5,079.05 = 2,488.39 : x
  2. Step 2: Convert to fraction form
    3,680.81/5,079.05 = 2,488.39/x
  3. Step 3: Cross multiply
    3,680.81x = 5,079.05 × 2,488.39
  4. Step 4: Simplify right side
    3,680.81x = 12,638,655.42
  5. Step 5: Solve for x
    x = 12,638,655.42/3,680.81
  6. Step 6: Final answer
    x = 3,433.66

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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.