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Finding the Fourth Proportional to 1,647.95, 2,274.08 and 901.76

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Solution

The fourth proportional to 1,647.95, 2,274.08 and 901.76 is: 1,244.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.95 : 2,274.08 = 901.76 : x
  2. Step 2: Convert to fraction form
    1,647.95/2,274.08 = 901.76/x
  3. Step 3: Cross multiply
    1,647.95x = 2,274.08 × 901.76
  4. Step 4: Simplify right side
    1,647.95x = 2,050,658.50
  5. Step 5: Solve for x
    x = 2,050,658.50/1,647.95
  6. Step 6: Final answer
    x = 1,244.37

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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.