Home / 4,612.84-6,363.32-3,121.28

Finding the Fourth Proportional to 4,612.84, 6,363.32 and 3,121.28

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Solution

The fourth proportional to 4,612.84, 6,363.32 and 3,121.28 is: 4,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.84 : 6,363.32 = 3,121.28 : x
  2. Step 2: Convert to fraction form
    4,612.84/6,363.32 = 3,121.28/x
  3. Step 3: Cross multiply
    4,612.84x = 6,363.32 × 3,121.28
  4. Step 4: Simplify right side
    4,612.84x = 19,861,703.45
  5. Step 5: Solve for x
    x = 19,861,703.45/4,612.84
  6. Step 6: Final answer
    x = 4,305.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.