Home / 2,318.40-3,476.58-1,086.24

Finding the Fourth Proportional to 2,318.40, 3,476.58 and 1,086.24

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Solution

The fourth proportional to 2,318.40, 3,476.58 and 1,086.24 is: 1,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.40 : 3,476.58 = 1,086.24 : x
  2. Step 2: Convert to fraction form
    2,318.40/3,476.58 = 1,086.24/x
  3. Step 3: Cross multiply
    2,318.40x = 3,476.58 × 1,086.24
  4. Step 4: Simplify right side
    2,318.40x = 3,776,400.26
  5. Step 5: Solve for x
    x = 3,776,400.26/2,318.40
  6. Step 6: Final answer
    x = 1,628.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.