Home / 2,740.23-3,779.46-2,149.74

Finding the Fourth Proportional to 2,740.23, 3,779.46 and 2,149.74

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Solution

The fourth proportional to 2,740.23, 3,779.46 and 2,149.74 is: 2,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.23 : 3,779.46 = 2,149.74 : x
  2. Step 2: Convert to fraction form
    2,740.23/3,779.46 = 2,149.74/x
  3. Step 3: Cross multiply
    2,740.23x = 3,779.46 × 2,149.74
  4. Step 4: Simplify right side
    2,740.23x = 8,124,856.34
  5. Step 5: Solve for x
    x = 8,124,856.34/2,740.23
  6. Step 6: Final answer
    x = 2,965.03

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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.