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Finding the Fourth Proportional to 1,528.84, 2,293.50 and 554.80

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Solution

The fourth proportional to 1,528.84, 2,293.50 and 554.80 is: 832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.84 : 2,293.50 = 554.80 : x
  2. Step 2: Convert to fraction form
    1,528.84/2,293.50 = 554.80/x
  3. Step 3: Cross multiply
    1,528.84x = 2,293.50 × 554.80
  4. Step 4: Simplify right side
    1,528.84x = 1,272,433.80
  5. Step 5: Solve for x
    x = 1,272,433.80/1,528.84
  6. Step 6: Final answer
    x = 832.29

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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.