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Finding the Fourth Proportional to 1,952.96, 2,929.38 and 912.35

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Solution

The fourth proportional to 1,952.96, 2,929.38 and 912.35 is: 1,368.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.96 : 2,929.38 = 912.35 : x
  2. Step 2: Convert to fraction form
    1,952.96/2,929.38 = 912.35/x
  3. Step 3: Cross multiply
    1,952.96x = 2,929.38 × 912.35
  4. Step 4: Simplify right side
    1,952.96x = 2,672,605.20
  5. Step 5: Solve for x
    x = 2,672,605.20/1,952.96
  6. Step 6: Final answer
    x = 1,368.49

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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.