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Finding the Fourth Proportional to 1,551.76, 2,328.12 and 526.48

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Solution

The fourth proportional to 1,551.76, 2,328.12 and 526.48 is: 789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.76 : 2,328.12 = 526.48 : x
  2. Step 2: Convert to fraction form
    1,551.76/2,328.12 = 526.48/x
  3. Step 3: Cross multiply
    1,551.76x = 2,328.12 × 526.48
  4. Step 4: Simplify right side
    1,551.76x = 1,225,708.62
  5. Step 5: Solve for x
    x = 1,225,708.62/1,551.76
  6. Step 6: Final answer
    x = 789.88

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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.