Home / 7,119.47-10,683.66-3,425.51

Finding the Fourth Proportional to 7,119.47, 10,683.66 and 3,425.51

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Solution

The fourth proportional to 7,119.47, 10,683.66 and 3,425.51 is: 5,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.47 : 10,683.66 = 3,425.51 : x
  2. Step 2: Convert to fraction form
    7,119.47/10,683.66 = 3,425.51/x
  3. Step 3: Cross multiply
    7,119.47x = 10,683.66 × 3,425.51
  4. Step 4: Simplify right side
    7,119.47x = 36,596,930.75
  5. Step 5: Solve for x
    x = 36,596,930.75/7,119.47
  6. Step 6: Final answer
    x = 5,140.40

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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.