Home / 5,115.60-7,673.40-4,653.90

Finding the Fourth Proportional to 5,115.60, 7,673.40 and 4,653.90

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Solution

The fourth proportional to 5,115.60, 7,673.40 and 4,653.90 is: 6,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.60 : 7,673.40 = 4,653.90 : x
  2. Step 2: Convert to fraction form
    5,115.60/7,673.40 = 4,653.90/x
  3. Step 3: Cross multiply
    5,115.60x = 7,673.40 × 4,653.90
  4. Step 4: Simplify right side
    5,115.60x = 35,711,236.26
  5. Step 5: Solve for x
    x = 35,711,236.26/5,115.60
  6. Step 6: Final answer
    x = 6,980.85

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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.