Home / 1,864.80-2,579.78-1,532.57

Finding the Fourth Proportional to 1,864.80, 2,579.78 and 1,532.57

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Solution

The fourth proportional to 1,864.80, 2,579.78 and 1,532.57 is: 2,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.80 : 2,579.78 = 1,532.57 : x
  2. Step 2: Convert to fraction form
    1,864.80/2,579.78 = 1,532.57/x
  3. Step 3: Cross multiply
    1,864.80x = 2,579.78 × 1,532.57
  4. Step 4: Simplify right side
    1,864.80x = 3,953,684.37
  5. Step 5: Solve for x
    x = 3,953,684.37/1,864.80
  6. Step 6: Final answer
    x = 2,120.17

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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.