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Finding the Fourth Proportional to 2,803.11, 3,868.25 and 1,624.29

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Solution

The fourth proportional to 2,803.11, 3,868.25 and 1,624.29 is: 2,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.11 : 3,868.25 = 1,624.29 : x
  2. Step 2: Convert to fraction form
    2,803.11/3,868.25 = 1,624.29/x
  3. Step 3: Cross multiply
    2,803.11x = 3,868.25 × 1,624.29
  4. Step 4: Simplify right side
    2,803.11x = 6,283,159.79
  5. Step 5: Solve for x
    x = 6,283,159.79/2,803.11
  6. Step 6: Final answer
    x = 2,241.50

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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.