Home / 5,225.61-7,211.34-2,987.54

Finding the Fourth Proportional to 5,225.61, 7,211.34 and 2,987.54

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Solution

The fourth proportional to 5,225.61, 7,211.34 and 2,987.54 is: 4,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.61 : 7,211.34 = 2,987.54 : x
  2. Step 2: Convert to fraction form
    5,225.61/7,211.34 = 2,987.54/x
  3. Step 3: Cross multiply
    5,225.61x = 7,211.34 × 2,987.54
  4. Step 4: Simplify right side
    5,225.61x = 21,544,115.71
  5. Step 5: Solve for x
    x = 21,544,115.71/5,225.61
  6. Step 6: Final answer
    x = 4,122.79

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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.