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Finding the Fourth Proportional to 976.51, 1,346.52 and 754.98

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Solution

The fourth proportional to 976.51, 1,346.52 and 754.98 is: 1,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.51 : 1,346.52 = 754.98 : x
  2. Step 2: Convert to fraction form
    976.51/1,346.52 = 754.98/x
  3. Step 3: Cross multiply
    976.51x = 1,346.52 × 754.98
  4. Step 4: Simplify right side
    976.51x = 1,016,595.67
  5. Step 5: Solve for x
    x = 1,016,595.67/976.51
  6. Step 6: Final answer
    x = 1,041.05

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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.