Home / 1,864.64-2,797.41-1,317.89

Finding the Fourth Proportional to 1,864.64, 2,797.41 and 1,317.89

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Solution

The fourth proportional to 1,864.64, 2,797.41 and 1,317.89 is: 1,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.64 : 2,797.41 = 1,317.89 : x
  2. Step 2: Convert to fraction form
    1,864.64/2,797.41 = 1,317.89/x
  3. Step 3: Cross multiply
    1,864.64x = 2,797.41 × 1,317.89
  4. Step 4: Simplify right side
    1,864.64x = 3,686,664.68
  5. Step 5: Solve for x
    x = 3,686,664.68/1,864.64
  6. Step 6: Final answer
    x = 1,977.15

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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.