Home / 1,215.42-1,823.13-484.98

Finding the Fourth Proportional to 1,215.42, 1,823.13 and 484.98

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Solution

The fourth proportional to 1,215.42, 1,823.13 and 484.98 is: 727.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.42 : 1,823.13 = 484.98 : x
  2. Step 2: Convert to fraction form
    1,215.42/1,823.13 = 484.98/x
  3. Step 3: Cross multiply
    1,215.42x = 1,823.13 × 484.98
  4. Step 4: Simplify right side
    1,215.42x = 884,181.59
  5. Step 5: Solve for x
    x = 884,181.59/1,215.42
  6. Step 6: Final answer
    x = 727.47

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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.