Home / 3,368.88-5,053.28-1,421.04

Finding the Fourth Proportional to 3,368.88, 5,053.28 and 1,421.04

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Solution

The fourth proportional to 3,368.88, 5,053.28 and 1,421.04 is: 2,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.88 : 5,053.28 = 1,421.04 : x
  2. Step 2: Convert to fraction form
    3,368.88/5,053.28 = 1,421.04/x
  3. Step 3: Cross multiply
    3,368.88x = 5,053.28 × 1,421.04
  4. Step 4: Simplify right side
    3,368.88x = 7,180,913.01
  5. Step 5: Solve for x
    x = 7,180,913.01/3,368.88
  6. Step 6: Final answer
    x = 2,131.54

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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.