Home / 1,801.32-2,484.58-1,211.56

Finding the Fourth Proportional to 1,801.32, 2,484.58 and 1,211.56

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Solution

The fourth proportional to 1,801.32, 2,484.58 and 1,211.56 is: 1,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.32 : 2,484.58 = 1,211.56 : x
  2. Step 2: Convert to fraction form
    1,801.32/2,484.58 = 1,211.56/x
  3. Step 3: Cross multiply
    1,801.32x = 2,484.58 × 1,211.56
  4. Step 4: Simplify right side
    1,801.32x = 3,010,217.74
  5. Step 5: Solve for x
    x = 3,010,217.74/1,801.32
  6. Step 6: Final answer
    x = 1,671.12

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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.