Home / 7,001.28-10,501.92-1,806.75

Finding the Fourth Proportional to 7,001.28, 10,501.92 and 1,806.75

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Solution

The fourth proportional to 7,001.28, 10,501.92 and 1,806.75 is: 2,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.28 : 10,501.92 = 1,806.75 : x
  2. Step 2: Convert to fraction form
    7,001.28/10,501.92 = 1,806.75/x
  3. Step 3: Cross multiply
    7,001.28x = 10,501.92 × 1,806.75
  4. Step 4: Simplify right side
    7,001.28x = 18,974,343.96
  5. Step 5: Solve for x
    x = 18,974,343.96/7,001.28
  6. Step 6: Final answer
    x = 2,710.13

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Double scale
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Similar ratio
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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.