Home / 5,587.39-8,378.79-2,077.62

Finding the Fourth Proportional to 5,587.39, 8,378.79 and 2,077.62

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Solution

The fourth proportional to 5,587.39, 8,378.79 and 2,077.62 is: 3,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.39 : 8,378.79 = 2,077.62 : x
  2. Step 2: Convert to fraction form
    5,587.39/8,378.79 = 2,077.62/x
  3. Step 3: Cross multiply
    5,587.39x = 8,378.79 × 2,077.62
  4. Step 4: Simplify right side
    5,587.39x = 17,407,941.68
  5. Step 5: Solve for x
    x = 17,407,941.68/5,587.39
  6. Step 6: Final answer
    x = 3,115.58

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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.