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Finding the Fourth Proportional to 3,626.62, 5,004.74 and 1,970.62

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Solution

The fourth proportional to 3,626.62, 5,004.74 and 1,970.62 is: 2,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.62 : 5,004.74 = 1,970.62 : x
  2. Step 2: Convert to fraction form
    3,626.62/5,004.74 = 1,970.62/x
  3. Step 3: Cross multiply
    3,626.62x = 5,004.74 × 1,970.62
  4. Step 4: Simplify right side
    3,626.62x = 9,862,440.74
  5. Step 5: Solve for x
    x = 9,862,440.74/3,626.62
  6. Step 6: Final answer
    x = 2,719.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.