Home / 3,117.33-4,677.21-926.08

Finding the Fourth Proportional to 3,117.33, 4,677.21 and 926.08

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Solution

The fourth proportional to 3,117.33, 4,677.21 and 926.08 is: 1,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.33 : 4,677.21 = 926.08 : x
  2. Step 2: Convert to fraction form
    3,117.33/4,677.21 = 926.08/x
  3. Step 3: Cross multiply
    3,117.33x = 4,677.21 × 926.08
  4. Step 4: Simplify right side
    3,117.33x = 4,331,458.94
  5. Step 5: Solve for x
    x = 4,331,458.94/3,117.33
  6. Step 6: Final answer
    x = 1,389.48

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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.