Home / 7,125.75-10,685.88-2,967.72

Finding the Fourth Proportional to 7,125.75, 10,685.88 and 2,967.72

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Solution

The fourth proportional to 7,125.75, 10,685.88 and 2,967.72 is: 4,450.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.75 : 10,685.88 = 2,967.72 : x
  2. Step 2: Convert to fraction form
    7,125.75/10,685.88 = 2,967.72/x
  3. Step 3: Cross multiply
    7,125.75x = 10,685.88 × 2,967.72
  4. Step 4: Simplify right side
    7,125.75x = 31,712,699.79
  5. Step 5: Solve for x
    x = 31,712,699.79/7,125.75
  6. Step 6: Final answer
    x = 4,450.44

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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.