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Finding the Fourth Proportional to 3,886.59, 5,365.29 and 2,292.70

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Solution

The fourth proportional to 3,886.59, 5,365.29 and 2,292.70 is: 3,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.59 : 5,365.29 = 2,292.70 : x
  2. Step 2: Convert to fraction form
    3,886.59/5,365.29 = 2,292.70/x
  3. Step 3: Cross multiply
    3,886.59x = 5,365.29 × 2,292.70
  4. Step 4: Simplify right side
    3,886.59x = 12,300,962.09
  5. Step 5: Solve for x
    x = 12,300,962.09/3,886.59
  6. Step 6: Final answer
    x = 3,164.98

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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.