Home / 1,855.20-2,780.96-1,527.16

Finding the Fourth Proportional to 1,855.20, 2,780.96 and 1,527.16

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Solution

The fourth proportional to 1,855.20, 2,780.96 and 1,527.16 is: 2,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.20 : 2,780.96 = 1,527.16 : x
  2. Step 2: Convert to fraction form
    1,855.20/2,780.96 = 1,527.16/x
  3. Step 3: Cross multiply
    1,855.20x = 2,780.96 × 1,527.16
  4. Step 4: Simplify right side
    1,855.20x = 4,246,970.87
  5. Step 5: Solve for x
    x = 4,246,970.87/1,855.20
  6. Step 6: Final answer
    x = 2,289.23

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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.