Home / 3,506.22-5,280.12-3,121.74

Finding the Fourth Proportional to 3,506.22, 5,280.12 and 3,121.74

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Solution

The fourth proportional to 3,506.22, 5,280.12 and 3,121.74 is: 4,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.22 : 5,280.12 = 3,121.74 : x
  2. Step 2: Convert to fraction form
    3,506.22/5,280.12 = 3,121.74/x
  3. Step 3: Cross multiply
    3,506.22x = 5,280.12 × 3,121.74
  4. Step 4: Simplify right side
    3,506.22x = 16,483,161.81
  5. Step 5: Solve for x
    x = 16,483,161.81/3,506.22
  6. Step 6: Final answer
    x = 4,701.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.