Home / 7,077.60-9,764.31-4,092.90

Finding the Fourth Proportional to 7,077.60, 9,764.31 and 4,092.90

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Solution

The fourth proportional to 7,077.60, 9,764.31 and 4,092.90 is: 5,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.60 : 9,764.31 = 4,092.90 : x
  2. Step 2: Convert to fraction form
    7,077.60/9,764.31 = 4,092.90/x
  3. Step 3: Cross multiply
    7,077.60x = 9,764.31 × 4,092.90
  4. Step 4: Simplify right side
    7,077.60x = 39,964,344.40
  5. Step 5: Solve for x
    x = 39,964,344.40/7,077.60
  6. Step 6: Final answer
    x = 5,646.60

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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.