Home / 2,774.58-3,827.82-1,779.69

Finding the Fourth Proportional to 2,774.58, 3,827.82 and 1,779.69

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Solution

The fourth proportional to 2,774.58, 3,827.82 and 1,779.69 is: 2,455.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.58 : 3,827.82 = 1,779.69 : x
  2. Step 2: Convert to fraction form
    2,774.58/3,827.82 = 1,779.69/x
  3. Step 3: Cross multiply
    2,774.58x = 3,827.82 × 1,779.69
  4. Step 4: Simplify right side
    2,774.58x = 6,812,332.98
  5. Step 5: Solve for x
    x = 6,812,332.98/2,774.58
  6. Step 6: Final answer
    x = 2,455.27

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1.5x scale

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.