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Finding the Fourth Proportional to 2,772.59, 3,824.48 and 1,888.79

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Solution

The fourth proportional to 2,772.59, 3,824.48 and 1,888.79 is: 2,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.59 : 3,824.48 = 1,888.79 : x
  2. Step 2: Convert to fraction form
    2,772.59/3,824.48 = 1,888.79/x
  3. Step 3: Cross multiply
    2,772.59x = 3,824.48 × 1,888.79
  4. Step 4: Simplify right side
    2,772.59x = 7,223,630.14
  5. Step 5: Solve for x
    x = 7,223,630.14/2,772.59
  6. Step 6: Final answer
    x = 2,605.37

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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.