Home / 5,548.95-7,645.73-4,290.21

Finding the Fourth Proportional to 5,548.95, 7,645.73 and 4,290.21

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Solution

The fourth proportional to 5,548.95, 7,645.73 and 4,290.21 is: 5,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,548.95 : 7,645.73 = 4,290.21 : x
  2. Step 2: Convert to fraction form
    5,548.95/7,645.73 = 4,290.21/x
  3. Step 3: Cross multiply
    5,548.95x = 7,645.73 × 4,290.21
  4. Step 4: Simplify right side
    5,548.95x = 32,801,765.85
  5. Step 5: Solve for x
    x = 32,801,765.85/5,548.95
  6. Step 6: Final answer
    x = 5,911.35

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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.