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Finding the Fourth Proportional to 1,885.44, 2,828.55 and 652.53

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Solution

The fourth proportional to 1,885.44, 2,828.55 and 652.53 is: 978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.44 : 2,828.55 = 652.53 : x
  2. Step 2: Convert to fraction form
    1,885.44/2,828.55 = 652.53/x
  3. Step 3: Cross multiply
    1,885.44x = 2,828.55 × 652.53
  4. Step 4: Simplify right side
    1,885.44x = 1,845,713.73
  5. Step 5: Solve for x
    x = 1,845,713.73/1,885.44
  6. Step 6: Final answer
    x = 978.93

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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.