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Finding the Fourth Proportional to 1,146.75, 1,582.52 and 704.64

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Solution

The fourth proportional to 1,146.75, 1,582.52 and 704.64 is: 972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.75 : 1,582.52 = 704.64 : x
  2. Step 2: Convert to fraction form
    1,146.75/1,582.52 = 704.64/x
  3. Step 3: Cross multiply
    1,146.75x = 1,582.52 × 704.64
  4. Step 4: Simplify right side
    1,146.75x = 1,115,103.37
  5. Step 5: Solve for x
    x = 1,115,103.37/1,146.75
  6. Step 6: Final answer
    x = 972.40

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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.