Home / 7,178.45-9,907.19-4,035.24

Finding the Fourth Proportional to 7,178.45, 9,907.19 and 4,035.24

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Solution

The fourth proportional to 7,178.45, 9,907.19 and 4,035.24 is: 5,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.45 : 9,907.19 = 4,035.24 : x
  2. Step 2: Convert to fraction form
    7,178.45/9,907.19 = 4,035.24/x
  3. Step 3: Cross multiply
    7,178.45x = 9,907.19 × 4,035.24
  4. Step 4: Simplify right side
    7,178.45x = 39,977,869.20
  5. Step 5: Solve for x
    x = 39,977,869.20/7,178.45
  6. Step 6: Final answer
    x = 5,569.15

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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.