Home / 5,161.52-7,741.86-1,875.35

Finding the Fourth Proportional to 5,161.52, 7,741.86 and 1,875.35

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Solution

The fourth proportional to 5,161.52, 7,741.86 and 1,875.35 is: 2,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.52 : 7,741.86 = 1,875.35 : x
  2. Step 2: Convert to fraction form
    5,161.52/7,741.86 = 1,875.35/x
  3. Step 3: Cross multiply
    5,161.52x = 7,741.86 × 1,875.35
  4. Step 4: Simplify right side
    5,161.52x = 14,518,658.44
  5. Step 5: Solve for x
    x = 14,518,658.44/5,161.52
  6. Step 6: Final answer
    x = 2,812.87

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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.