Home / 2,988.22-4,485.17-1,429.07

Finding the Fourth Proportional to 2,988.22, 4,485.17 and 1,429.07

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Solution

The fourth proportional to 2,988.22, 4,485.17 and 1,429.07 is: 2,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.22 : 4,485.17 = 1,429.07 : x
  2. Step 2: Convert to fraction form
    2,988.22/4,485.17 = 1,429.07/x
  3. Step 3: Cross multiply
    2,988.22x = 4,485.17 × 1,429.07
  4. Step 4: Simplify right side
    2,988.22x = 6,409,615.65
  5. Step 5: Solve for x
    x = 6,409,615.65/2,988.22
  6. Step 6: Final answer
    x = 2,144.96

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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.