Home / 6,107.79-8,428.80-3,313.31

Finding the Fourth Proportional to 6,107.79, 8,428.80 and 3,313.31

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Solution

The fourth proportional to 6,107.79, 8,428.80 and 3,313.31 is: 4,572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.79 : 8,428.80 = 3,313.31 : x
  2. Step 2: Convert to fraction form
    6,107.79/8,428.80 = 3,313.31/x
  3. Step 3: Cross multiply
    6,107.79x = 8,428.80 × 3,313.31
  4. Step 4: Simplify right side
    6,107.79x = 27,927,210.76
  5. Step 5: Solve for x
    x = 27,927,210.76/6,107.79
  6. Step 6: Final answer
    x = 4,572.39

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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.