Home / 4,428.15-6,639.14-1,961.63

Finding the Fourth Proportional to 4,428.15, 6,639.14 and 1,961.63

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Solution

The fourth proportional to 4,428.15, 6,639.14 and 1,961.63 is: 2,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.15 : 6,639.14 = 1,961.63 : x
  2. Step 2: Convert to fraction form
    4,428.15/6,639.14 = 1,961.63/x
  3. Step 3: Cross multiply
    4,428.15x = 6,639.14 × 1,961.63
  4. Step 4: Simplify right side
    4,428.15x = 13,023,557.70
  5. Step 5: Solve for x
    x = 13,023,557.70/4,428.15
  6. Step 6: Final answer
    x = 2,941.08

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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.