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Finding the Fourth Proportional to 794.30, 1,094.19 and 661.46

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Solution

The fourth proportional to 794.30, 1,094.19 and 661.46 is: 911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.30 : 1,094.19 = 661.46 : x
  2. Step 2: Convert to fraction form
    794.30/1,094.19 = 661.46/x
  3. Step 3: Cross multiply
    794.30x = 1,094.19 × 661.46
  4. Step 4: Simplify right side
    794.30x = 723,762.92
  5. Step 5: Solve for x
    x = 723,762.92/794.30
  6. Step 6: Final answer
    x = 911.20

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Double scale
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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.