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Finding the Fourth Proportional to 2,851.95, 4,278.99 and 1,743.64

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Solution

The fourth proportional to 2,851.95, 4,278.99 and 1,743.64 is: 2,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.95 : 4,278.99 = 1,743.64 : x
  2. Step 2: Convert to fraction form
    2,851.95/4,278.99 = 1,743.64/x
  3. Step 3: Cross multiply
    2,851.95x = 4,278.99 × 1,743.64
  4. Step 4: Simplify right side
    2,851.95x = 7,460,988.01
  5. Step 5: Solve for x
    x = 7,460,988.01/2,851.95
  6. Step 6: Final answer
    x = 2,616.10

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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.