Home / 3,168.60-4,368.06-2,118.84

Finding the Fourth Proportional to 3,168.60, 4,368.06 and 2,118.84

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Solution

The fourth proportional to 3,168.60, 4,368.06 and 2,118.84 is: 2,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.60 : 4,368.06 = 2,118.84 : x
  2. Step 2: Convert to fraction form
    3,168.60/4,368.06 = 2,118.84/x
  3. Step 3: Cross multiply
    3,168.60x = 4,368.06 × 2,118.84
  4. Step 4: Simplify right side
    3,168.60x = 9,255,220.25
  5. Step 5: Solve for x
    x = 9,255,220.25/3,168.60
  6. Step 6: Final answer
    x = 2,920.92

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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.