Home / 6,917.49-10,377.87-1,987.02

Finding the Fourth Proportional to 6,917.49, 10,377.87 and 1,987.02

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Solution

The fourth proportional to 6,917.49, 10,377.87 and 1,987.02 is: 2,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.49 : 10,377.87 = 1,987.02 : x
  2. Step 2: Convert to fraction form
    6,917.49/10,377.87 = 1,987.02/x
  3. Step 3: Cross multiply
    6,917.49x = 10,377.87 × 1,987.02
  4. Step 4: Simplify right side
    6,917.49x = 20,621,035.25
  5. Step 5: Solve for x
    x = 20,621,035.25/6,917.49
  6. Step 6: Final answer
    x = 2,981.00

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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.