Home / 7,122.93-10,685.75-2,960.68

Finding the Fourth Proportional to 7,122.93, 10,685.75 and 2,960.68

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Solution

The fourth proportional to 7,122.93, 10,685.75 and 2,960.68 is: 4,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.93 : 10,685.75 = 2,960.68 : x
  2. Step 2: Convert to fraction form
    7,122.93/10,685.75 = 2,960.68/x
  3. Step 3: Cross multiply
    7,122.93x = 10,685.75 × 2,960.68
  4. Step 4: Simplify right side
    7,122.93x = 31,637,044.79
  5. Step 5: Solve for x
    x = 31,637,044.79/7,122.93
  6. Step 6: Final answer
    x = 4,441.58

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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.