Home / 5,394.78-8,075.88-3,542.40

Finding the Fourth Proportional to 5,394.78, 8,075.88 and 3,542.40

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Solution

The fourth proportional to 5,394.78, 8,075.88 and 3,542.40 is: 5,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.78 : 8,075.88 = 3,542.40 : x
  2. Step 2: Convert to fraction form
    5,394.78/8,075.88 = 3,542.40/x
  3. Step 3: Cross multiply
    5,394.78x = 8,075.88 × 3,542.40
  4. Step 4: Simplify right side
    5,394.78x = 28,607,997.31
  5. Step 5: Solve for x
    x = 28,607,997.31/5,394.78
  6. Step 6: Final answer
    x = 5,302.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.