Home / 2,607.18-3,918.42-2,171.22

Finding the Fourth Proportional to 2,607.18, 3,918.42 and 2,171.22

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Solution

The fourth proportional to 2,607.18, 3,918.42 and 2,171.22 is: 3,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.18 : 3,918.42 = 2,171.22 : x
  2. Step 2: Convert to fraction form
    2,607.18/3,918.42 = 2,171.22/x
  3. Step 3: Cross multiply
    2,607.18x = 3,918.42 × 2,171.22
  4. Step 4: Simplify right side
    2,607.18x = 8,507,751.87
  5. Step 5: Solve for x
    x = 8,507,751.87/2,607.18
  6. Step 6: Final answer
    x = 3,263.20

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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.