Home / 5,445.86-7,515.44-3,087.95

Finding the Fourth Proportional to 5,445.86, 7,515.44 and 3,087.95

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Solution

The fourth proportional to 5,445.86, 7,515.44 and 3,087.95 is: 4,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.86 : 7,515.44 = 3,087.95 : x
  2. Step 2: Convert to fraction form
    5,445.86/7,515.44 = 3,087.95/x
  3. Step 3: Cross multiply
    5,445.86x = 7,515.44 × 3,087.95
  4. Step 4: Simplify right side
    5,445.86x = 23,207,249.93
  5. Step 5: Solve for x
    x = 23,207,249.93/5,445.86
  6. Step 6: Final answer
    x = 4,261.45

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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.