Home / 4,285.28-6,436.80-2,642.56

Finding the Fourth Proportional to 4,285.28, 6,436.80 and 2,642.56

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Solution

The fourth proportional to 4,285.28, 6,436.80 and 2,642.56 is: 3,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.28 : 6,436.80 = 2,642.56 : x
  2. Step 2: Convert to fraction form
    4,285.28/6,436.80 = 2,642.56/x
  3. Step 3: Cross multiply
    4,285.28x = 6,436.80 × 2,642.56
  4. Step 4: Simplify right side
    4,285.28x = 17,009,630.21
  5. Step 5: Solve for x
    x = 17,009,630.21/4,285.28
  6. Step 6: Final answer
    x = 3,969.32

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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.