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Finding the Fourth Proportional to 4,543.83, 6,815.39 and 1,256.99

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Solution

The fourth proportional to 4,543.83, 6,815.39 and 1,256.99 is: 1,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,543.83 : 6,815.39 = 1,256.99 : x
  2. Step 2: Convert to fraction form
    4,543.83/6,815.39 = 1,256.99/x
  3. Step 3: Cross multiply
    4,543.83x = 6,815.39 × 1,256.99
  4. Step 4: Simplify right side
    4,543.83x = 8,566,836.71
  5. Step 5: Solve for x
    x = 8,566,836.71/4,543.83
  6. Step 6: Final answer
    x = 1,885.38

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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.