Home / 7,165.28-10,747.10-1,970.76

Finding the Fourth Proportional to 7,165.28, 10,747.10 and 1,970.76

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Solution

The fourth proportional to 7,165.28, 10,747.10 and 1,970.76 is: 2,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.28 : 10,747.10 = 1,970.76 : x
  2. Step 2: Convert to fraction form
    7,165.28/10,747.10 = 1,970.76/x
  3. Step 3: Cross multiply
    7,165.28x = 10,747.10 × 1,970.76
  4. Step 4: Simplify right side
    7,165.28x = 21,179,954.80
  5. Step 5: Solve for x
    x = 21,179,954.80/7,165.28
  6. Step 6: Final answer
    x = 2,955.91

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1.5x scale

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.