Home / 2,709.39-3,740.55-1,779.51

Finding the Fourth Proportional to 2,709.39, 3,740.55 and 1,779.51

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Solution

The fourth proportional to 2,709.39, 3,740.55 and 1,779.51 is: 2,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.39 : 3,740.55 = 1,779.51 : x
  2. Step 2: Convert to fraction form
    2,709.39/3,740.55 = 1,779.51/x
  3. Step 3: Cross multiply
    2,709.39x = 3,740.55 × 1,779.51
  4. Step 4: Simplify right side
    2,709.39x = 6,656,346.13
  5. Step 5: Solve for x
    x = 6,656,346.13/2,709.39
  6. Step 6: Final answer
    x = 2,456.77

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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.