Home / 6,954.81-10,420.49-3,440.13

Finding the Fourth Proportional to 6,954.81, 10,420.49 and 3,440.13

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Solution

The fourth proportional to 6,954.81, 10,420.49 and 3,440.13 is: 5,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,954.81 : 10,420.49 = 3,440.13 : x
  2. Step 2: Convert to fraction form
    6,954.81/10,420.49 = 3,440.13/x
  3. Step 3: Cross multiply
    6,954.81x = 10,420.49 × 3,440.13
  4. Step 4: Simplify right side
    6,954.81x = 35,847,823.06
  5. Step 5: Solve for x
    x = 35,847,823.06/6,954.81
  6. Step 6: Final answer
    x = 5,154.39

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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.