Home / 1,853.39-2,779.58-928.27

Finding the Fourth Proportional to 1,853.39, 2,779.58 and 928.27

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Solution

The fourth proportional to 1,853.39, 2,779.58 and 928.27 is: 1,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.39 : 2,779.58 = 928.27 : x
  2. Step 2: Convert to fraction form
    1,853.39/2,779.58 = 928.27/x
  3. Step 3: Cross multiply
    1,853.39x = 2,779.58 × 928.27
  4. Step 4: Simplify right side
    1,853.39x = 2,580,206.52
  5. Step 5: Solve for x
    x = 2,580,206.52/1,853.39
  6. Step 6: Final answer
    x = 1,392.15

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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.