Home / 6,878.13-10,317.39-1,684

Finding the Fourth Proportional to 6,878.13, 10,317.39 and 1,684

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Solution

The fourth proportional to 6,878.13, 10,317.39 and 1,684 is: 2,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.13 : 10,317.39 = 1,684 : x
  2. Step 2: Convert to fraction form
    6,878.13/10,317.39 = 1,684/x
  3. Step 3: Cross multiply
    6,878.13x = 10,317.39 × 1,684
  4. Step 4: Simplify right side
    6,878.13x = 17,374,484.76
  5. Step 5: Solve for x
    x = 17,374,484.76/6,878.13
  6. Step 6: Final answer
    x = 2,526.05

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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.