Home / 7,122.15-10,683.23-3,423.51

Finding the Fourth Proportional to 7,122.15, 10,683.23 and 3,423.51

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Solution

The fourth proportional to 7,122.15, 10,683.23 and 3,423.51 is: 5,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.15 : 10,683.23 = 3,423.51 : x
  2. Step 2: Convert to fraction form
    7,122.15/10,683.23 = 3,423.51/x
  3. Step 3: Cross multiply
    7,122.15x = 10,683.23 × 3,423.51
  4. Step 4: Simplify right side
    7,122.15x = 36,574,144.74
  5. Step 5: Solve for x
    x = 36,574,144.74/7,122.15
  6. Step 6: Final answer
    x = 5,135.27

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Similar ratio
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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.