Home / 2,421.04-3,630.84-881.68

Finding the Fourth Proportional to 2,421.04, 3,630.84 and 881.68

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Solution

The fourth proportional to 2,421.04, 3,630.84 and 881.68 is: 1,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.04 : 3,630.84 = 881.68 : x
  2. Step 2: Convert to fraction form
    2,421.04/3,630.84 = 881.68/x
  3. Step 3: Cross multiply
    2,421.04x = 3,630.84 × 881.68
  4. Step 4: Simplify right side
    2,421.04x = 3,201,239.01
  5. Step 5: Solve for x
    x = 3,201,239.01/2,421.04
  6. Step 6: Final answer
    x = 1,322.26

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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.