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Finding the Fourth Proportional to 949.92, 1,309.53 and 751.06

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Solution

The fourth proportional to 949.92, 1,309.53 and 751.06 is: 1,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.92 : 1,309.53 = 751.06 : x
  2. Step 2: Convert to fraction form
    949.92/1,309.53 = 751.06/x
  3. Step 3: Cross multiply
    949.92x = 1,309.53 × 751.06
  4. Step 4: Simplify right side
    949.92x = 983,535.60
  5. Step 5: Solve for x
    x = 983,535.60/949.92
  6. Step 6: Final answer
    x = 1,035.39

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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.