Home / 3,117.31-4,675.97-926.06

Finding the Fourth Proportional to 3,117.31, 4,675.97 and 926.06

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Solution

The fourth proportional to 3,117.31, 4,675.97 and 926.06 is: 1,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.31 : 4,675.97 = 926.06 : x
  2. Step 2: Convert to fraction form
    3,117.31/4,675.97 = 926.06/x
  3. Step 3: Cross multiply
    3,117.31x = 4,675.97 × 926.06
  4. Step 4: Simplify right side
    3,117.31x = 4,330,207.71
  5. Step 5: Solve for x
    x = 4,330,207.71/3,117.31
  6. Step 6: Final answer
    x = 1,389.09

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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.