Home / 3,340.76-5,005.67-1,779.11

Finding the Fourth Proportional to 3,340.76, 5,005.67 and 1,779.11

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Solution

The fourth proportional to 3,340.76, 5,005.67 and 1,779.11 is: 2,665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.76 : 5,005.67 = 1,779.11 : x
  2. Step 2: Convert to fraction form
    3,340.76/5,005.67 = 1,779.11/x
  3. Step 3: Cross multiply
    3,340.76x = 5,005.67 × 1,779.11
  4. Step 4: Simplify right side
    3,340.76x = 8,905,608.08
  5. Step 5: Solve for x
    x = 8,905,608.08/3,340.76
  6. Step 6: Final answer
    x = 2,665.74

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1.5x scale

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.