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Finding the Fourth Proportional to 1,865.11, 2,797.51 and 632.50

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Solution

The fourth proportional to 1,865.11, 2,797.51 and 632.50 is: 948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.11 : 2,797.51 = 632.50 : x
  2. Step 2: Convert to fraction form
    1,865.11/2,797.51 = 632.50/x
  3. Step 3: Cross multiply
    1,865.11x = 2,797.51 × 632.50
  4. Step 4: Simplify right side
    1,865.11x = 1,769,425.08
  5. Step 5: Solve for x
    x = 1,769,425.08/1,865.11
  6. Step 6: Final answer
    x = 948.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.