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Finding the Fourth Proportional to 3,007.71, 4,149.42 and 1,888.53

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Solution

The fourth proportional to 3,007.71, 4,149.42 and 1,888.53 is: 2,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.71 : 4,149.42 = 1,888.53 : x
  2. Step 2: Convert to fraction form
    3,007.71/4,149.42 = 1,888.53/x
  3. Step 3: Cross multiply
    3,007.71x = 4,149.42 × 1,888.53
  4. Step 4: Simplify right side
    3,007.71x = 7,836,304.15
  5. Step 5: Solve for x
    x = 7,836,304.15/3,007.71
  6. Step 6: Final answer
    x = 2,605.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.