Home / 3,116.31-4,674.42-926.52

Finding the Fourth Proportional to 3,116.31, 4,674.42 and 926.52

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Solution

The fourth proportional to 3,116.31, 4,674.42 and 926.52 is: 1,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.31 : 4,674.42 = 926.52 : x
  2. Step 2: Convert to fraction form
    3,116.31/4,674.42 = 926.52/x
  3. Step 3: Cross multiply
    3,116.31x = 4,674.42 × 926.52
  4. Step 4: Simplify right side
    3,116.31x = 4,330,943.62
  5. Step 5: Solve for x
    x = 4,330,943.62/3,116.31
  6. Step 6: Final answer
    x = 1,389.77

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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.