Home / 2,154.25-2,972.93-1,270.81

Finding the Fourth Proportional to 2,154.25, 2,972.93 and 1,270.81

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Solution

The fourth proportional to 2,154.25, 2,972.93 and 1,270.81 is: 1,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.25 : 2,972.93 = 1,270.81 : x
  2. Step 2: Convert to fraction form
    2,154.25/2,972.93 = 1,270.81/x
  3. Step 3: Cross multiply
    2,154.25x = 2,972.93 × 1,270.81
  4. Step 4: Simplify right side
    2,154.25x = 3,778,029.17
  5. Step 5: Solve for x
    x = 3,778,029.17/2,154.25
  6. Step 6: Final answer
    x = 1,753.76

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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.