Home / 5,225.45-7,210.60-2,987.87

Finding the Fourth Proportional to 5,225.45, 7,210.60 and 2,987.87

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Solution

The fourth proportional to 5,225.45, 7,210.60 and 2,987.87 is: 4,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.45 : 7,210.60 = 2,987.87 : x
  2. Step 2: Convert to fraction form
    5,225.45/7,210.60 = 2,987.87/x
  3. Step 3: Cross multiply
    5,225.45x = 7,210.60 × 2,987.87
  4. Step 4: Simplify right side
    5,225.45x = 21,544,335.42
  5. Step 5: Solve for x
    x = 21,544,335.42/5,225.45
  6. Step 6: Final answer
    x = 4,122.96

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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.