Home / 5,421.38-7,436.51-5,374.58

Finding the Fourth Proportional to 5,421.38, 7,436.51 and 5,374.58

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Solution

The fourth proportional to 5,421.38, 7,436.51 and 5,374.58 is: 7,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.38 : 7,436.51 = 5,374.58 : x
  2. Step 2: Convert to fraction form
    5,421.38/7,436.51 = 5,374.58/x
  3. Step 3: Cross multiply
    5,421.38x = 7,436.51 × 5,374.58
  4. Step 4: Simplify right side
    5,421.38x = 39,968,074.02
  5. Step 5: Solve for x
    x = 39,968,074.02/5,421.38
  6. Step 6: Final answer
    x = 7,372.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.