Home / 1,962.05-2,939.02-1,572.71

Finding the Fourth Proportional to 1,962.05, 2,939.02 and 1,572.71

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Solution

The fourth proportional to 1,962.05, 2,939.02 and 1,572.71 is: 2,355.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.05 : 2,939.02 = 1,572.71 : x
  2. Step 2: Convert to fraction form
    1,962.05/2,939.02 = 1,572.71/x
  3. Step 3: Cross multiply
    1,962.05x = 2,939.02 × 1,572.71
  4. Step 4: Simplify right side
    1,962.05x = 4,622,207.52
  5. Step 5: Solve for x
    x = 4,622,207.52/1,962.05
  6. Step 6: Final answer
    x = 2,355.81

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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.