Home / 2,775.57-3,828.77-1,779.74

Finding the Fourth Proportional to 2,775.57, 3,828.77 and 1,779.74

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Solution

The fourth proportional to 2,775.57, 3,828.77 and 1,779.74 is: 2,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.57 : 3,828.77 = 1,779.74 : x
  2. Step 2: Convert to fraction form
    2,775.57/3,828.77 = 1,779.74/x
  3. Step 3: Cross multiply
    2,775.57x = 3,828.77 × 1,779.74
  4. Step 4: Simplify right side
    2,775.57x = 6,814,208.11
  5. Step 5: Solve for x
    x = 6,814,208.11/2,775.57
  6. Step 6: Final answer
    x = 2,455.07

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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.