Home / 7,725.92-11,581.72-4,210.72

Finding the Fourth Proportional to 7,725.92, 11,581.72 and 4,210.72

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Solution

The fourth proportional to 7,725.92, 11,581.72 and 4,210.72 is: 6,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.92 : 11,581.72 = 4,210.72 : x
  2. Step 2: Convert to fraction form
    7,725.92/11,581.72 = 4,210.72/x
  3. Step 3: Cross multiply
    7,725.92x = 11,581.72 × 4,210.72
  4. Step 4: Simplify right side
    7,725.92x = 48,767,380.04
  5. Step 5: Solve for x
    x = 48,767,380.04/7,725.92
  6. Step 6: Final answer
    x = 6,312.18

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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.