Home / 1,923.30-2,871.84-1,528.86

Finding the Fourth Proportional to 1,923.30, 2,871.84 and 1,528.86

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Solution

The fourth proportional to 1,923.30, 2,871.84 and 1,528.86 is: 2,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.30 : 2,871.84 = 1,528.86 : x
  2. Step 2: Convert to fraction form
    1,923.30/2,871.84 = 1,528.86/x
  3. Step 3: Cross multiply
    1,923.30x = 2,871.84 × 1,528.86
  4. Step 4: Simplify right side
    1,923.30x = 4,390,641.30
  5. Step 5: Solve for x
    x = 4,390,641.30/1,923.30
  6. Step 6: Final answer
    x = 2,282.87

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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.