Home / 5,227.98-7,214.58-2,990.76

Finding the Fourth Proportional to 5,227.98, 7,214.58 and 2,990.76

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Solution

The fourth proportional to 5,227.98, 7,214.58 and 2,990.76 is: 4,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.98 : 7,214.58 = 2,990.76 : x
  2. Step 2: Convert to fraction form
    5,227.98/7,214.58 = 2,990.76/x
  3. Step 3: Cross multiply
    5,227.98x = 7,214.58 × 2,990.76
  4. Step 4: Simplify right side
    5,227.98x = 21,577,077.28
  5. Step 5: Solve for x
    x = 21,577,077.28/5,227.98
  6. Step 6: Final answer
    x = 4,127.23

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Double scale
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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.