Home / 3,117.96-4,677.19-926.69

Finding the Fourth Proportional to 3,117.96, 4,677.19 and 926.69

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Solution

The fourth proportional to 3,117.96, 4,677.19 and 926.69 is: 1,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.96 : 4,677.19 = 926.69 : x
  2. Step 2: Convert to fraction form
    3,117.96/4,677.19 = 926.69/x
  3. Step 3: Cross multiply
    3,117.96x = 4,677.19 × 926.69
  4. Step 4: Simplify right side
    3,117.96x = 4,334,291.19
  5. Step 5: Solve for x
    x = 4,334,291.19/3,117.96
  6. Step 6: Final answer
    x = 1,390.11

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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.