Home / 1,686.08-2,324.22-1,331.36

Finding the Fourth Proportional to 1,686.08, 2,324.22 and 1,331.36

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Solution

The fourth proportional to 1,686.08, 2,324.22 and 1,331.36 is: 1,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.08 : 2,324.22 = 1,331.36 : x
  2. Step 2: Convert to fraction form
    1,686.08/2,324.22 = 1,331.36/x
  3. Step 3: Cross multiply
    1,686.08x = 2,324.22 × 1,331.36
  4. Step 4: Simplify right side
    1,686.08x = 3,094,373.54
  5. Step 5: Solve for x
    x = 3,094,373.54/1,686.08
  6. Step 6: Final answer
    x = 1,835.25

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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.