Home / 4,725.77-7,088.18-1,438.88

Finding the Fourth Proportional to 4,725.77, 7,088.18 and 1,438.88

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Solution

The fourth proportional to 4,725.77, 7,088.18 and 1,438.88 is: 2,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.77 : 7,088.18 = 1,438.88 : x
  2. Step 2: Convert to fraction form
    4,725.77/7,088.18 = 1,438.88/x
  3. Step 3: Cross multiply
    4,725.77x = 7,088.18 × 1,438.88
  4. Step 4: Simplify right side
    4,725.77x = 10,198,997.80
  5. Step 5: Solve for x
    x = 10,198,997.80/4,725.77
  6. Step 6: Final answer
    x = 2,158.17

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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.