Home / 5,392.80-7,445.75-4,131.63

Finding the Fourth Proportional to 5,392.80, 7,445.75 and 4,131.63

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Solution

The fourth proportional to 5,392.80, 7,445.75 and 4,131.63 is: 5,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.80 : 7,445.75 = 4,131.63 : x
  2. Step 2: Convert to fraction form
    5,392.80/7,445.75 = 4,131.63/x
  3. Step 3: Cross multiply
    5,392.80x = 7,445.75 × 4,131.63
  4. Step 4: Simplify right side
    5,392.80x = 30,763,084.07
  5. Step 5: Solve for x
    x = 30,763,084.07/5,392.80
  6. Step 6: Final answer
    x = 5,704.47

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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.