Home / 5,886.80-8,830.20-5,387.60

Finding the Fourth Proportional to 5,886.80, 8,830.20 and 5,387.60

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Solution

The fourth proportional to 5,886.80, 8,830.20 and 5,387.60 is: 8,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.80 : 8,830.20 = 5,387.60 : x
  2. Step 2: Convert to fraction form
    5,886.80/8,830.20 = 5,387.60/x
  3. Step 3: Cross multiply
    5,886.80x = 8,830.20 × 5,387.60
  4. Step 4: Simplify right side
    5,886.80x = 47,573,585.52
  5. Step 5: Solve for x
    x = 47,573,585.52/5,886.80
  6. Step 6: Final answer
    x = 8,081.40

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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.