Home / 1,672.14-2,307.42-926.09

Finding the Fourth Proportional to 1,672.14, 2,307.42 and 926.09

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Solution

The fourth proportional to 1,672.14, 2,307.42 and 926.09 is: 1,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.14 : 2,307.42 = 926.09 : x
  2. Step 2: Convert to fraction form
    1,672.14/2,307.42 = 926.09/x
  3. Step 3: Cross multiply
    1,672.14x = 2,307.42 × 926.09
  4. Step 4: Simplify right side
    1,672.14x = 2,136,867.05
  5. Step 5: Solve for x
    x = 2,136,867.05/1,672.14
  6. Step 6: Final answer
    x = 1,277.92

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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.