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Finding the Fourth Proportional to 4,869.78, 7,304.73 and 1,407.03

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Solution

The fourth proportional to 4,869.78, 7,304.73 and 1,407.03 is: 2,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.78 : 7,304.73 = 1,407.03 : x
  2. Step 2: Convert to fraction form
    4,869.78/7,304.73 = 1,407.03/x
  3. Step 3: Cross multiply
    4,869.78x = 7,304.73 × 1,407.03
  4. Step 4: Simplify right side
    4,869.78x = 10,277,974.25
  5. Step 5: Solve for x
    x = 10,277,974.25/4,869.78
  6. Step 6: Final answer
    x = 2,110.56

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1.5x scale

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.