Home / 5,645.55-7,790.93-3,255.47

Finding the Fourth Proportional to 5,645.55, 7,790.93 and 3,255.47

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Solution

The fourth proportional to 5,645.55, 7,790.93 and 3,255.47 is: 4,492.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.55 : 7,790.93 = 3,255.47 : x
  2. Step 2: Convert to fraction form
    5,645.55/7,790.93 = 3,255.47/x
  3. Step 3: Cross multiply
    5,645.55x = 7,790.93 × 3,255.47
  4. Step 4: Simplify right side
    5,645.55x = 25,363,138.89
  5. Step 5: Solve for x
    x = 25,363,138.89/5,645.55
  6. Step 6: Final answer
    x = 4,492.59

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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.