Home / 2,134.95-3,186.07-1,645.35

Finding the Fourth Proportional to 2,134.95, 3,186.07 and 1,645.35

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Solution

The fourth proportional to 2,134.95, 3,186.07 and 1,645.35 is: 2,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.95 : 3,186.07 = 1,645.35 : x
  2. Step 2: Convert to fraction form
    2,134.95/3,186.07 = 1,645.35/x
  3. Step 3: Cross multiply
    2,134.95x = 3,186.07 × 1,645.35
  4. Step 4: Simplify right side
    2,134.95x = 5,242,196.16
  5. Step 5: Solve for x
    x = 5,242,196.16/2,134.95
  6. Step 6: Final answer
    x = 2,455.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.