Home / 3,440.18-5,158.69-1,880.71

Finding the Fourth Proportional to 3,440.18, 5,158.69 and 1,880.71

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Solution

The fourth proportional to 3,440.18, 5,158.69 and 1,880.71 is: 2,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.18 : 5,158.69 = 1,880.71 : x
  2. Step 2: Convert to fraction form
    3,440.18/5,158.69 = 1,880.71/x
  3. Step 3: Cross multiply
    3,440.18x = 5,158.69 × 1,880.71
  4. Step 4: Simplify right side
    3,440.18x = 9,701,999.87
  5. Step 5: Solve for x
    x = 9,701,999.87/3,440.18
  6. Step 6: Final answer
    x = 2,820.20

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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.