Home / 5,412.06-7,468.86-3,421.89

Finding the Fourth Proportional to 5,412.06, 7,468.86 and 3,421.89

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Solution

The fourth proportional to 5,412.06, 7,468.86 and 3,421.89 is: 4,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.06 : 7,468.86 = 3,421.89 : x
  2. Step 2: Convert to fraction form
    5,412.06/7,468.86 = 3,421.89/x
  3. Step 3: Cross multiply
    5,412.06x = 7,468.86 × 3,421.89
  4. Step 4: Simplify right side
    5,412.06x = 25,557,617.35
  5. Step 5: Solve for x
    x = 25,557,617.35/5,412.06
  6. Step 6: Final answer
    x = 4,722.35

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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.