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Finding the Fourth Proportional to 2,070.07, 3,105 and 510.00

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Solution

The fourth proportional to 2,070.07, 3,105 and 510.00 is: 764.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.07 : 3,105 = 510.00 : x
  2. Step 2: Convert to fraction form
    2,070.07/3,105 = 510.00/x
  3. Step 3: Cross multiply
    2,070.07x = 3,105 × 510.00
  4. Step 4: Simplify right side
    2,070.07x = 1,583,538.36
  5. Step 5: Solve for x
    x = 1,583,538.36/2,070.07
  6. Step 6: Final answer
    x = 764.97

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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.