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Finding the Fourth Proportional to 5,006.88, 7,510.92 and 1,720.56

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Solution

The fourth proportional to 5,006.88, 7,510.92 and 1,720.56 is: 2,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,006.88 : 7,510.92 = 1,720.56 : x
  2. Step 2: Convert to fraction form
    5,006.88/7,510.92 = 1,720.56/x
  3. Step 3: Cross multiply
    5,006.88x = 7,510.92 × 1,720.56
  4. Step 4: Simplify right side
    5,006.88x = 12,922,988.52
  5. Step 5: Solve for x
    x = 12,922,988.52/5,006.88
  6. Step 6: Final answer
    x = 2,581.05

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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.