Home / 2,154.16-2,972.40-1,269.84

Finding the Fourth Proportional to 2,154.16, 2,972.40 and 1,269.84

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Solution

The fourth proportional to 2,154.16, 2,972.40 and 1,269.84 is: 1,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.16 : 2,972.40 = 1,269.84 : x
  2. Step 2: Convert to fraction form
    2,154.16/2,972.40 = 1,269.84/x
  3. Step 3: Cross multiply
    2,154.16x = 2,972.40 × 1,269.84
  4. Step 4: Simplify right side
    2,154.16x = 3,774,472.42
  5. Step 5: Solve for x
    x = 3,774,472.42/2,154.16
  6. Step 6: Final answer
    x = 1,752.18

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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.