Home / 7,975.42-11,962.65-3,531.78

Finding the Fourth Proportional to 7,975.42, 11,962.65 and 3,531.78

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Solution

The fourth proportional to 7,975.42, 11,962.65 and 3,531.78 is: 5,297.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.42 : 11,962.65 = 3,531.78 : x
  2. Step 2: Convert to fraction form
    7,975.42/11,962.65 = 3,531.78/x
  3. Step 3: Cross multiply
    7,975.42x = 11,962.65 × 3,531.78
  4. Step 4: Simplify right side
    7,975.42x = 42,249,448.02
  5. Step 5: Solve for x
    x = 42,249,448.02/7,975.42
  6. Step 6: Final answer
    x = 5,297.46

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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.