Home / 2,155.38-2,967.72-1,625

Finding the Fourth Proportional to 2,155.38, 2,967.72 and 1,625

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Solution

The fourth proportional to 2,155.38, 2,967.72 and 1,625 is: 2,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.38 : 2,967.72 = 1,625 : x
  2. Step 2: Convert to fraction form
    2,155.38/2,967.72 = 1,625/x
  3. Step 3: Cross multiply
    2,155.38x = 2,967.72 × 1,625
  4. Step 4: Simplify right side
    2,155.38x = 4,822,545
  5. Step 5: Solve for x
    x = 4,822,545/2,155.38
  6. Step 6: Final answer
    x = 2,237.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.