Home / 4,878.41-7,314.53-2,688.66

Finding the Fourth Proportional to 4,878.41, 7,314.53 and 2,688.66

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Solution

The fourth proportional to 4,878.41, 7,314.53 and 2,688.66 is: 4,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.41 : 7,314.53 = 2,688.66 : x
  2. Step 2: Convert to fraction form
    4,878.41/7,314.53 = 2,688.66/x
  3. Step 3: Cross multiply
    4,878.41x = 7,314.53 × 2,688.66
  4. Step 4: Simplify right side
    4,878.41x = 19,666,270.79
  5. Step 5: Solve for x
    x = 19,666,270.79/4,878.41
  6. Step 6: Final answer
    x = 4,031.29

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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.