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Finding the Fourth Proportional to 5,829.80, 8,766.30 and 4,879.40

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Solution

The fourth proportional to 5,829.80, 8,766.30 and 4,879.40 is: 7,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,829.80 : 8,766.30 = 4,879.40 : x
  2. Step 2: Convert to fraction form
    5,829.80/8,766.30 = 4,879.40/x
  3. Step 3: Cross multiply
    5,829.80x = 8,766.30 × 4,879.40
  4. Step 4: Simplify right side
    5,829.80x = 42,774,284.22
  5. Step 5: Solve for x
    x = 42,774,284.22/5,829.80
  6. Step 6: Final answer
    x = 7,337.18

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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.