Home / 7,155.44-10,729.14-2,990.96

Finding the Fourth Proportional to 7,155.44, 10,729.14 and 2,990.96

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Solution

The fourth proportional to 7,155.44, 10,729.14 and 2,990.96 is: 4,484.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.44 : 10,729.14 = 2,990.96 : x
  2. Step 2: Convert to fraction form
    7,155.44/10,729.14 = 2,990.96/x
  3. Step 3: Cross multiply
    7,155.44x = 10,729.14 × 2,990.96
  4. Step 4: Simplify right side
    7,155.44x = 32,090,428.57
  5. Step 5: Solve for x
    x = 32,090,428.57/7,155.44
  6. Step 6: Final answer
    x = 4,484.76

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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.