Home / 7,189.72-10,785.05-2,259.57

Finding the Fourth Proportional to 7,189.72, 10,785.05 and 2,259.57

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Solution

The fourth proportional to 7,189.72, 10,785.05 and 2,259.57 is: 3,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.72 : 10,785.05 = 2,259.57 : x
  2. Step 2: Convert to fraction form
    7,189.72/10,785.05 = 2,259.57/x
  3. Step 3: Cross multiply
    7,189.72x = 10,785.05 × 2,259.57
  4. Step 4: Simplify right side
    7,189.72x = 24,369,510.21
  5. Step 5: Solve for x
    x = 24,369,510.21/7,189.72
  6. Step 6: Final answer
    x = 3,389.49

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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.