Home / 3,209.48-4,422.04-2,159.72

Finding the Fourth Proportional to 3,209.48, 4,422.04 and 2,159.72

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Solution

The fourth proportional to 3,209.48, 4,422.04 and 2,159.72 is: 2,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.48 : 4,422.04 = 2,159.72 : x
  2. Step 2: Convert to fraction form
    3,209.48/4,422.04 = 2,159.72/x
  3. Step 3: Cross multiply
    3,209.48x = 4,422.04 × 2,159.72
  4. Step 4: Simplify right side
    3,209.48x = 9,550,368.23
  5. Step 5: Solve for x
    x = 9,550,368.23/3,209.48
  6. Step 6: Final answer
    x = 2,975.67

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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.