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Finding the Fourth Proportional to 1,007.10, 1,510.28 and 348.82

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Solution

The fourth proportional to 1,007.10, 1,510.28 and 348.82 is: 523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007.10 : 1,510.28 = 348.82 : x
  2. Step 2: Convert to fraction form
    1,007.10/1,510.28 = 348.82/x
  3. Step 3: Cross multiply
    1,007.10x = 1,510.28 × 348.82
  4. Step 4: Simplify right side
    1,007.10x = 526,815.87
  5. Step 5: Solve for x
    x = 526,815.87/1,007.10
  6. Step 6: Final answer
    x = 523.10

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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.