Home / 7,145.12-10,717.34-1,951.01

Finding the Fourth Proportional to 7,145.12, 10,717.34 and 1,951.01

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Solution

The fourth proportional to 7,145.12, 10,717.34 and 1,951.01 is: 2,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.12 : 10,717.34 = 1,951.01 : x
  2. Step 2: Convert to fraction form
    7,145.12/10,717.34 = 1,951.01/x
  3. Step 3: Cross multiply
    7,145.12x = 10,717.34 × 1,951.01
  4. Step 4: Simplify right side
    7,145.12x = 20,909,588.80
  5. Step 5: Solve for x
    x = 20,909,588.80/7,145.12
  6. Step 6: Final answer
    x = 2,926.42

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Double scale
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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.