Home / 1,546.11-2,133.57-847.47

Finding the Fourth Proportional to 1,546.11, 2,133.57 and 847.47

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Solution

The fourth proportional to 1,546.11, 2,133.57 and 847.47 is: 1,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.11 : 2,133.57 = 847.47 : x
  2. Step 2: Convert to fraction form
    1,546.11/2,133.57 = 847.47/x
  3. Step 3: Cross multiply
    1,546.11x = 2,133.57 × 847.47
  4. Step 4: Simplify right side
    1,546.11x = 1,808,136.57
  5. Step 5: Solve for x
    x = 1,808,136.57/1,546.11
  6. Step 6: Final answer
    x = 1,169.47

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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.