Home / 5,124.26-7,681.58-2,780.83

Finding the Fourth Proportional to 5,124.26, 7,681.58 and 2,780.83

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Solution

The fourth proportional to 5,124.26, 7,681.58 and 2,780.83 is: 4,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.26 : 7,681.58 = 2,780.83 : x
  2. Step 2: Convert to fraction form
    5,124.26/7,681.58 = 2,780.83/x
  3. Step 3: Cross multiply
    5,124.26x = 7,681.58 × 2,780.83
  4. Step 4: Simplify right side
    5,124.26x = 21,361,168.11
  5. Step 5: Solve for x
    x = 21,361,168.11/5,124.26
  6. Step 6: Final answer
    x = 4,168.63

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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.