Home / 7,256.28-10,886.76-2,871.30

Finding the Fourth Proportional to 7,256.28, 10,886.76 and 2,871.30

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Solution

The fourth proportional to 7,256.28, 10,886.76 and 2,871.30 is: 4,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.28 : 10,886.76 = 2,871.30 : x
  2. Step 2: Convert to fraction form
    7,256.28/10,886.76 = 2,871.30/x
  3. Step 3: Cross multiply
    7,256.28x = 10,886.76 × 2,871.30
  4. Step 4: Simplify right side
    7,256.28x = 31,259,153.99
  5. Step 5: Solve for x
    x = 31,259,153.99/7,256.28
  6. Step 6: Final answer
    x = 4,307.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.