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Finding the Fourth Proportional to 967.05, 1,323 and 964.31

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Solution

The fourth proportional to 967.05, 1,323 and 964.31 is: 1,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.05 : 1,323 = 964.31 : x
  2. Step 2: Convert to fraction form
    967.05/1,323 = 964.31/x
  3. Step 3: Cross multiply
    967.05x = 1,323 × 964.31
  4. Step 4: Simplify right side
    967.05x = 1,275,775.52
  5. Step 5: Solve for x
    x = 1,275,775.52/967.05
  6. Step 6: Final answer
    x = 1,319.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.