Home / 3,487.01-4,812.08-1,995.21

Finding the Fourth Proportional to 3,487.01, 4,812.08 and 1,995.21

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Solution

The fourth proportional to 3,487.01, 4,812.08 and 1,995.21 is: 2,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.01 : 4,812.08 = 1,995.21 : x
  2. Step 2: Convert to fraction form
    3,487.01/4,812.08 = 1,995.21/x
  3. Step 3: Cross multiply
    3,487.01x = 4,812.08 × 1,995.21
  4. Step 4: Simplify right side
    3,487.01x = 9,601,100.16
  5. Step 5: Solve for x
    x = 9,601,100.16/3,487.01
  6. Step 6: Final answer
    x = 2,753.39

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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.