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Finding the Fourth Proportional to 1,967.16, 2,948.34 and 925.80

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Solution

The fourth proportional to 1,967.16, 2,948.34 and 925.80 is: 1,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967.16 : 2,948.34 = 925.80 : x
  2. Step 2: Convert to fraction form
    1,967.16/2,948.34 = 925.80/x
  3. Step 3: Cross multiply
    1,967.16x = 2,948.34 × 925.80
  4. Step 4: Simplify right side
    1,967.16x = 2,729,573.17
  5. Step 5: Solve for x
    x = 2,729,573.17/1,967.16
  6. Step 6: Final answer
    x = 1,387.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.