Home / 4,213.33-6,320.80-1,291.66

Finding the Fourth Proportional to 4,213.33, 6,320.80 and 1,291.66

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Solution

The fourth proportional to 4,213.33, 6,320.80 and 1,291.66 is: 1,937.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.33 : 6,320.80 = 1,291.66 : x
  2. Step 2: Convert to fraction form
    4,213.33/6,320.80 = 1,291.66/x
  3. Step 3: Cross multiply
    4,213.33x = 6,320.80 × 1,291.66
  4. Step 4: Simplify right side
    4,213.33x = 8,164,324.53
  5. Step 5: Solve for x
    x = 8,164,324.53/4,213.33
  6. Step 6: Final answer
    x = 1,937.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.