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Finding the Fourth Proportional to 1,800.79, 2,701.20 and 502.25

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Solution

The fourth proportional to 1,800.79, 2,701.20 and 502.25 is: 753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.79 : 2,701.20 = 502.25 : x
  2. Step 2: Convert to fraction form
    1,800.79/2,701.20 = 502.25/x
  3. Step 3: Cross multiply
    1,800.79x = 2,701.20 × 502.25
  4. Step 4: Simplify right side
    1,800.79x = 1,356,684.45
  5. Step 5: Solve for x
    x = 1,356,684.45/1,800.79
  6. Step 6: Final answer
    x = 753.38

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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.