Home / 3,290.22-4,931.12-1,440.84

Finding the Fourth Proportional to 3,290.22, 4,931.12 and 1,440.84

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Solution

The fourth proportional to 3,290.22, 4,931.12 and 1,440.84 is: 2,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.22 : 4,931.12 = 1,440.84 : x
  2. Step 2: Convert to fraction form
    3,290.22/4,931.12 = 1,440.84/x
  3. Step 3: Cross multiply
    3,290.22x = 4,931.12 × 1,440.84
  4. Step 4: Simplify right side
    3,290.22x = 7,104,954.94
  5. Step 5: Solve for x
    x = 7,104,954.94/3,290.22
  6. Step 6: Final answer
    x = 2,159.42

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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.