Home / 5,709.08-7,878.76-3,319.04

Finding the Fourth Proportional to 5,709.08, 7,878.76 and 3,319.04

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Solution

The fourth proportional to 5,709.08, 7,878.76 and 3,319.04 is: 4,580.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.08 : 7,878.76 = 3,319.04 : x
  2. Step 2: Convert to fraction form
    5,709.08/7,878.76 = 3,319.04/x
  3. Step 3: Cross multiply
    5,709.08x = 7,878.76 × 3,319.04
  4. Step 4: Simplify right side
    5,709.08x = 26,149,919.59
  5. Step 5: Solve for x
    x = 26,149,919.59/5,709.08
  6. Step 6: Final answer
    x = 4,580.41

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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.