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Finding the Fourth Proportional to 2,935.11, 4,402.66 and 988.68

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Solution

The fourth proportional to 2,935.11, 4,402.66 and 988.68 is: 1,483.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,935.11 : 4,402.66 = 988.68 : x
  2. Step 2: Convert to fraction form
    2,935.11/4,402.66 = 988.68/x
  3. Step 3: Cross multiply
    2,935.11x = 4,402.66 × 988.68
  4. Step 4: Simplify right side
    2,935.11x = 4,352,821.89
  5. Step 5: Solve for x
    x = 4,352,821.89/2,935.11
  6. Step 6: Final answer
    x = 1,483.02

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1.5x scale

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.