Home / 5,344.21-7,374.72-2,985.90

Finding the Fourth Proportional to 5,344.21, 7,374.72 and 2,985.90

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Solution

The fourth proportional to 5,344.21, 7,374.72 and 2,985.90 is: 4,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,344.21 : 7,374.72 = 2,985.90 : x
  2. Step 2: Convert to fraction form
    5,344.21/7,374.72 = 2,985.90/x
  3. Step 3: Cross multiply
    5,344.21x = 7,374.72 × 2,985.90
  4. Step 4: Simplify right side
    5,344.21x = 22,020,176.45
  5. Step 5: Solve for x
    x = 22,020,176.45/5,344.21
  6. Step 6: Final answer
    x = 4,120.38

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1.5x scale

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.