Home / 5,390.01-7,415.96-4,209.03

Finding the Fourth Proportional to 5,390.01, 7,415.96 and 4,209.03

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Solution

The fourth proportional to 5,390.01, 7,415.96 and 4,209.03 is: 5,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.01 : 7,415.96 = 4,209.03 : x
  2. Step 2: Convert to fraction form
    5,390.01/7,415.96 = 4,209.03/x
  3. Step 3: Cross multiply
    5,390.01x = 7,415.96 × 4,209.03
  4. Step 4: Simplify right side
    5,390.01x = 31,213,977.07
  5. Step 5: Solve for x
    x = 31,213,977.07/5,390.01
  6. Step 6: Final answer
    x = 5,791.08

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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.