Home / 5,316.35-7,336.05-3,077.78

Finding the Fourth Proportional to 5,316.35, 7,336.05 and 3,077.78

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Solution

The fourth proportional to 5,316.35, 7,336.05 and 3,077.78 is: 4,247.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.35 : 7,336.05 = 3,077.78 : x
  2. Step 2: Convert to fraction form
    5,316.35/7,336.05 = 3,077.78/x
  3. Step 3: Cross multiply
    5,316.35x = 7,336.05 × 3,077.78
  4. Step 4: Simplify right side
    5,316.35x = 22,578,747.97
  5. Step 5: Solve for x
    x = 22,578,747.97/5,316.35
  6. Step 6: Final answer
    x = 4,247.04

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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.