Home / 3,160.40-4,362.44-1,902.16

Finding the Fourth Proportional to 3,160.40, 4,362.44 and 1,902.16

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Solution

The fourth proportional to 3,160.40, 4,362.44 and 1,902.16 is: 2,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.40 : 4,362.44 = 1,902.16 : x
  2. Step 2: Convert to fraction form
    3,160.40/4,362.44 = 1,902.16/x
  3. Step 3: Cross multiply
    3,160.40x = 4,362.44 × 1,902.16
  4. Step 4: Simplify right side
    3,160.40x = 8,298,058.87
  5. Step 5: Solve for x
    x = 8,298,058.87/3,160.40
  6. Step 6: Final answer
    x = 2,625.64

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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.