Home / 2,779.40-4,162.85-1,950.16

Finding the Fourth Proportional to 2,779.40, 4,162.85 and 1,950.16

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Solution

The fourth proportional to 2,779.40, 4,162.85 and 1,950.16 is: 2,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.40 : 4,162.85 = 1,950.16 : x
  2. Step 2: Convert to fraction form
    2,779.40/4,162.85 = 1,950.16/x
  3. Step 3: Cross multiply
    2,779.40x = 4,162.85 × 1,950.16
  4. Step 4: Simplify right side
    2,779.40x = 8,118,219.01
  5. Step 5: Solve for x
    x = 8,118,219.01/2,779.40
  6. Step 6: Final answer
    x = 2,920.85

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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.