Home / 3,133.18-4,323.78-1,806.86

Finding the Fourth Proportional to 3,133.18, 4,323.78 and 1,806.86

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Solution

The fourth proportional to 3,133.18, 4,323.78 and 1,806.86 is: 2,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.18 : 4,323.78 = 1,806.86 : x
  2. Step 2: Convert to fraction form
    3,133.18/4,323.78 = 1,806.86/x
  3. Step 3: Cross multiply
    3,133.18x = 4,323.78 × 1,806.86
  4. Step 4: Simplify right side
    3,133.18x = 7,812,465.13
  5. Step 5: Solve for x
    x = 7,812,465.13/3,133.18
  6. Step 6: Final answer
    x = 2,493.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.