Home / 6,899.79-10,350.39-2,218.59

Finding the Fourth Proportional to 6,899.79, 10,350.39 and 2,218.59

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Solution

The fourth proportional to 6,899.79, 10,350.39 and 2,218.59 is: 3,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.79 : 10,350.39 = 2,218.59 : x
  2. Step 2: Convert to fraction form
    6,899.79/10,350.39 = 2,218.59/x
  3. Step 3: Cross multiply
    6,899.79x = 10,350.39 × 2,218.59
  4. Step 4: Simplify right side
    6,899.79x = 22,963,271.75
  5. Step 5: Solve for x
    x = 22,963,271.75/6,899.79
  6. Step 6: Final answer
    x = 3,328.11

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1.5x scale

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.