Home / 5,226.66-7,211.63-2,988.12

Finding the Fourth Proportional to 5,226.66, 7,211.63 and 2,988.12

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Solution

The fourth proportional to 5,226.66, 7,211.63 and 2,988.12 is: 4,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.66 : 7,211.63 = 2,988.12 : x
  2. Step 2: Convert to fraction form
    5,226.66/7,211.63 = 2,988.12/x
  3. Step 3: Cross multiply
    5,226.66x = 7,211.63 × 2,988.12
  4. Step 4: Simplify right side
    5,226.66x = 21,549,250.35
  5. Step 5: Solve for x
    x = 21,549,250.35/5,226.66
  6. Step 6: Final answer
    x = 4,122.95

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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.