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Finding the Fourth Proportional to 2,859.54, 3,943.08 and 2,261.04

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Solution

The fourth proportional to 2,859.54, 3,943.08 and 2,261.04 is: 3,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.54 : 3,943.08 = 2,261.04 : x
  2. Step 2: Convert to fraction form
    2,859.54/3,943.08 = 2,261.04/x
  3. Step 3: Cross multiply
    2,859.54x = 3,943.08 × 2,261.04
  4. Step 4: Simplify right side
    2,859.54x = 8,915,461.60
  5. Step 5: Solve for x
    x = 8,915,461.60/2,859.54
  6. Step 6: Final answer
    x = 3,117.80

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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.