Home / 4,426.50-6,639.29-2,778.16

Finding the Fourth Proportional to 4,426.50, 6,639.29 and 2,778.16

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Solution

The fourth proportional to 4,426.50, 6,639.29 and 2,778.16 is: 4,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,426.50 : 6,639.29 = 2,778.16 : x
  2. Step 2: Convert to fraction form
    4,426.50/6,639.29 = 2,778.16/x
  3. Step 3: Cross multiply
    4,426.50x = 6,639.29 × 2,778.16
  4. Step 4: Simplify right side
    4,426.50x = 18,445,009.91
  5. Step 5: Solve for x
    x = 18,445,009.91/4,426.50
  6. Step 6: Final answer
    x = 4,166.95

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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.