Home / 6,428.09-9,634.21-2,917.10

Finding the Fourth Proportional to 6,428.09, 9,634.21 and 2,917.10

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Solution

The fourth proportional to 6,428.09, 9,634.21 and 2,917.10 is: 4,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.09 : 9,634.21 = 2,917.10 : x
  2. Step 2: Convert to fraction form
    6,428.09/9,634.21 = 2,917.10/x
  3. Step 3: Cross multiply
    6,428.09x = 9,634.21 × 2,917.10
  4. Step 4: Simplify right side
    6,428.09x = 28,103,970.78
  5. Step 5: Solve for x
    x = 28,103,970.78/6,428.09
  6. Step 6: Final answer
    x = 4,372.05

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1.5x scale

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.