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Finding the Fourth Proportional to 5,208.48, 7,811.01 and 1,510.83

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Solution

The fourth proportional to 5,208.48, 7,811.01 and 1,510.83 is: 2,265.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.48 : 7,811.01 = 1,510.83 : x
  2. Step 2: Convert to fraction form
    5,208.48/7,811.01 = 1,510.83/x
  3. Step 3: Cross multiply
    5,208.48x = 7,811.01 × 1,510.83
  4. Step 4: Simplify right side
    5,208.48x = 11,801,108.24
  5. Step 5: Solve for x
    x = 11,801,108.24/5,208.48
  6. Step 6: Final answer
    x = 2,265.75

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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.