Home / 5,316.68-7,336.90-3,078.65

Finding the Fourth Proportional to 5,316.68, 7,336.90 and 3,078.65

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Solution

The fourth proportional to 5,316.68, 7,336.90 and 3,078.65 is: 4,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.68 : 7,336.90 = 3,078.65 : x
  2. Step 2: Convert to fraction form
    5,316.68/7,336.90 = 3,078.65/x
  3. Step 3: Cross multiply
    5,316.68x = 7,336.90 × 3,078.65
  4. Step 4: Simplify right side
    5,316.68x = 22,587,747.19
  5. Step 5: Solve for x
    x = 22,587,747.19/5,316.68
  6. Step 6: Final answer
    x = 4,248.47

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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.