Home / 2,982.35-4,470.17-1,421.08

Finding the Fourth Proportional to 2,982.35, 4,470.17 and 1,421.08

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Solution

The fourth proportional to 2,982.35, 4,470.17 and 1,421.08 is: 2,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.35 : 4,470.17 = 1,421.08 : x
  2. Step 2: Convert to fraction form
    2,982.35/4,470.17 = 1,421.08/x
  3. Step 3: Cross multiply
    2,982.35x = 4,470.17 × 1,421.08
  4. Step 4: Simplify right side
    2,982.35x = 6,352,450.90
  5. Step 5: Solve for x
    x = 6,352,450.90/2,982.35
  6. Step 6: Final answer
    x = 2,130.01

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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.