Home / 6,211.78-8,571.90-3,417.28

Finding the Fourth Proportional to 6,211.78, 8,571.90 and 3,417.28

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Solution

The fourth proportional to 6,211.78, 8,571.90 and 3,417.28 is: 4,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.78 : 8,571.90 = 3,417.28 : x
  2. Step 2: Convert to fraction form
    6,211.78/8,571.90 = 3,417.28/x
  3. Step 3: Cross multiply
    6,211.78x = 8,571.90 × 3,417.28
  4. Step 4: Simplify right side
    6,211.78x = 29,292,582.43
  5. Step 5: Solve for x
    x = 29,292,582.43/6,211.78
  6. Step 6: Final answer
    x = 4,715.65

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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.