Home / 4,276.92-6,415.42-1,355

Finding the Fourth Proportional to 4,276.92, 6,415.42 and 1,355

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Solution

The fourth proportional to 4,276.92, 6,415.42 and 1,355 is: 2,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.92 : 6,415.42 = 1,355 : x
  2. Step 2: Convert to fraction form
    4,276.92/6,415.42 = 1,355/x
  3. Step 3: Cross multiply
    4,276.92x = 6,415.42 × 1,355
  4. Step 4: Simplify right side
    4,276.92x = 8,692,894.10
  5. Step 5: Solve for x
    x = 8,692,894.10/4,276.92
  6. Step 6: Final answer
    x = 2,032.51

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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.