Home / 5,246.76-7,240.52-2,888.90

Finding the Fourth Proportional to 5,246.76, 7,240.52 and 2,888.90

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Solution

The fourth proportional to 5,246.76, 7,240.52 and 2,888.90 is: 3,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.76 : 7,240.52 = 2,888.90 : x
  2. Step 2: Convert to fraction form
    5,246.76/7,240.52 = 2,888.90/x
  3. Step 3: Cross multiply
    5,246.76x = 7,240.52 × 2,888.90
  4. Step 4: Simplify right side
    5,246.76x = 20,917,138.23
  5. Step 5: Solve for x
    x = 20,917,138.23/5,246.76
  6. Step 6: Final answer
    x = 3,986.68

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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.