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Finding the Fourth Proportional to 741.96, 1,107.68 and 716.24

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Solution

The fourth proportional to 741.96, 1,107.68 and 716.24 is: 1,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.96 : 1,107.68 = 716.24 : x
  2. Step 2: Convert to fraction form
    741.96/1,107.68 = 716.24/x
  3. Step 3: Cross multiply
    741.96x = 1,107.68 × 716.24
  4. Step 4: Simplify right side
    741.96x = 793,363.91
  5. Step 5: Solve for x
    x = 793,363.91/741.96
  6. Step 6: Final answer
    x = 1,069.28

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.