Home / 1,920.58-2,864.33-1,886.02

Finding the Fourth Proportional to 1,920.58, 2,864.33 and 1,886.02

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Solution

The fourth proportional to 1,920.58, 2,864.33 and 1,886.02 is: 2,812.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.58 : 2,864.33 = 1,886.02 : x
  2. Step 2: Convert to fraction form
    1,920.58/2,864.33 = 1,886.02/x
  3. Step 3: Cross multiply
    1,920.58x = 2,864.33 × 1,886.02
  4. Step 4: Simplify right side
    1,920.58x = 5,402,183.67
  5. Step 5: Solve for x
    x = 5,402,183.67/1,920.58
  6. Step 6: Final answer
    x = 2,812.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.