Home / 4,172.50-6,261.79-1,575.44

Finding the Fourth Proportional to 4,172.50, 6,261.79 and 1,575.44

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Solution

The fourth proportional to 4,172.50, 6,261.79 and 1,575.44 is: 2,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.50 : 6,261.79 = 1,575.44 : x
  2. Step 2: Convert to fraction form
    4,172.50/6,261.79 = 1,575.44/x
  3. Step 3: Cross multiply
    4,172.50x = 6,261.79 × 1,575.44
  4. Step 4: Simplify right side
    4,172.50x = 9,865,074.44
  5. Step 5: Solve for x
    x = 9,865,074.44/4,172.50
  6. Step 6: Final answer
    x = 2,364.31

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1.5x scale

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.