Home / 2,135.07-2,944.13-1,686.15

Finding the Fourth Proportional to 2,135.07, 2,944.13 and 1,686.15

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Solution

The fourth proportional to 2,135.07, 2,944.13 and 1,686.15 is: 2,325.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.07 : 2,944.13 = 1,686.15 : x
  2. Step 2: Convert to fraction form
    2,135.07/2,944.13 = 1,686.15/x
  3. Step 3: Cross multiply
    2,135.07x = 2,944.13 × 1,686.15
  4. Step 4: Simplify right side
    2,135.07x = 4,964,236.37
  5. Step 5: Solve for x
    x = 4,964,236.37/2,135.07
  6. Step 6: Final answer
    x = 2,325.09

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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.