Home / 3,117.29-4,676.67-926.24

Finding the Fourth Proportional to 3,117.29, 4,676.67 and 926.24

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Solution

The fourth proportional to 3,117.29, 4,676.67 and 926.24 is: 1,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.29 : 4,676.67 = 926.24 : x
  2. Step 2: Convert to fraction form
    3,117.29/4,676.67 = 926.24/x
  3. Step 3: Cross multiply
    3,117.29x = 4,676.67 × 926.24
  4. Step 4: Simplify right side
    3,117.29x = 4,331,695.44
  5. Step 5: Solve for x
    x = 4,331,695.44/3,117.29
  6. Step 6: Final answer
    x = 1,389.57

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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.