Home / 2,184.36-3,015.84-1,686.12

Finding the Fourth Proportional to 2,184.36, 3,015.84 and 1,686.12

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Solution

The fourth proportional to 2,184.36, 3,015.84 and 1,686.12 is: 2,327.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.36 : 3,015.84 = 1,686.12 : x
  2. Step 2: Convert to fraction form
    2,184.36/3,015.84 = 1,686.12/x
  3. Step 3: Cross multiply
    2,184.36x = 3,015.84 × 1,686.12
  4. Step 4: Simplify right side
    2,184.36x = 5,085,068.14
  5. Step 5: Solve for x
    x = 5,085,068.14/2,184.36
  6. Step 6: Final answer
    x = 2,327.94

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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.