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Finding the Fourth Proportional to 3,196.60, 4,411.10 and 1,870.22

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Solution

The fourth proportional to 3,196.60, 4,411.10 and 1,870.22 is: 2,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196.60 : 4,411.10 = 1,870.22 : x
  2. Step 2: Convert to fraction form
    3,196.60/4,411.10 = 1,870.22/x
  3. Step 3: Cross multiply
    3,196.60x = 4,411.10 × 1,870.22
  4. Step 4: Simplify right side
    3,196.60x = 8,249,727.44
  5. Step 5: Solve for x
    x = 8,249,727.44/3,196.60
  6. Step 6: Final answer
    x = 2,580.78

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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.