Home / 3,420.12-5,132.94-1,777.16

Finding the Fourth Proportional to 3,420.12, 5,132.94 and 1,777.16

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Solution

The fourth proportional to 3,420.12, 5,132.94 and 1,777.16 is: 2,667.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.12 : 5,132.94 = 1,777.16 : x
  2. Step 2: Convert to fraction form
    3,420.12/5,132.94 = 1,777.16/x
  3. Step 3: Cross multiply
    3,420.12x = 5,132.94 × 1,777.16
  4. Step 4: Simplify right side
    3,420.12x = 9,122,055.65
  5. Step 5: Solve for x
    x = 9,122,055.65/3,420.12
  6. Step 6: Final answer
    x = 2,667.17

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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.