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Finding the Fourth Proportional to 3,145.69, 4,720.52 and 1,759.93

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Solution

The fourth proportional to 3,145.69, 4,720.52 and 1,759.93 is: 2,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.69 : 4,720.52 = 1,759.93 : x
  2. Step 2: Convert to fraction form
    3,145.69/4,720.52 = 1,759.93/x
  3. Step 3: Cross multiply
    3,145.69x = 4,720.52 × 1,759.93
  4. Step 4: Simplify right side
    3,145.69x = 8,307,784.76
  5. Step 5: Solve for x
    x = 8,307,784.76/3,145.69
  6. Step 6: Final answer
    x = 2,641.01

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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.