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Finding the Fourth Proportional to 3,100.58, 4,278.11 and 1,842.05

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Solution

The fourth proportional to 3,100.58, 4,278.11 and 1,842.05 is: 2,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.58 : 4,278.11 = 1,842.05 : x
  2. Step 2: Convert to fraction form
    3,100.58/4,278.11 = 1,842.05/x
  3. Step 3: Cross multiply
    3,100.58x = 4,278.11 × 1,842.05
  4. Step 4: Simplify right side
    3,100.58x = 7,880,492.53
  5. Step 5: Solve for x
    x = 7,880,492.53/3,100.58
  6. Step 6: Final answer
    x = 2,541.62

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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.