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Finding the Fourth Proportional to 4,640.01, 6,959.28 and 1,520.01

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Solution

The fourth proportional to 4,640.01, 6,959.28 and 1,520.01 is: 2,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.01 : 6,959.28 = 1,520.01 : x
  2. Step 2: Convert to fraction form
    4,640.01/6,959.28 = 1,520.01/x
  3. Step 3: Cross multiply
    4,640.01x = 6,959.28 × 1,520.01
  4. Step 4: Simplify right side
    4,640.01x = 10,578,175.19
  5. Step 5: Solve for x
    x = 10,578,175.19/4,640.01
  6. Step 6: Final answer
    x = 2,279.77

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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.