Home / 4,276.19-6,420.67-2,639.59

Finding the Fourth Proportional to 4,276.19, 6,420.67 and 2,639.59

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Solution

The fourth proportional to 4,276.19, 6,420.67 and 2,639.59 is: 3,963.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.19 : 6,420.67 = 2,639.59 : x
  2. Step 2: Convert to fraction form
    4,276.19/6,420.67 = 2,639.59/x
  3. Step 3: Cross multiply
    4,276.19x = 6,420.67 × 2,639.59
  4. Step 4: Simplify right side
    4,276.19x = 16,947,913.67
  5. Step 5: Solve for x
    x = 16,947,913.67/4,276.19
  6. Step 6: Final answer
    x = 3,963.32

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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.