Home / 5,167.55-7,746.66-1,878.35

Finding the Fourth Proportional to 5,167.55, 7,746.66 and 1,878.35

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Solution

The fourth proportional to 5,167.55, 7,746.66 and 1,878.35 is: 2,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.55 : 7,746.66 = 1,878.35 : x
  2. Step 2: Convert to fraction form
    5,167.55/7,746.66 = 1,878.35/x
  3. Step 3: Cross multiply
    5,167.55x = 7,746.66 × 1,878.35
  4. Step 4: Simplify right side
    5,167.55x = 14,550,900.08
  5. Step 5: Solve for x
    x = 14,550,900.08/5,167.55
  6. Step 6: Final answer
    x = 2,815.82

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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.