Home / 1,437.48-2,154.63-819.82

Finding the Fourth Proportional to 1,437.48, 2,154.63 and 819.82

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Solution

The fourth proportional to 1,437.48, 2,154.63 and 819.82 is: 1,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.48 : 2,154.63 = 819.82 : x
  2. Step 2: Convert to fraction form
    1,437.48/2,154.63 = 819.82/x
  3. Step 3: Cross multiply
    1,437.48x = 2,154.63 × 819.82
  4. Step 4: Simplify right side
    1,437.48x = 1,766,408.77
  5. Step 5: Solve for x
    x = 1,766,408.77/1,437.48
  6. Step 6: Final answer
    x = 1,228.82

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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.