Home / 3,498.81-5,245.38-1,307.22

Finding the Fourth Proportional to 3,498.81, 5,245.38 and 1,307.22

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Solution

The fourth proportional to 3,498.81, 5,245.38 and 1,307.22 is: 1,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.81 : 5,245.38 = 1,307.22 : x
  2. Step 2: Convert to fraction form
    3,498.81/5,245.38 = 1,307.22/x
  3. Step 3: Cross multiply
    3,498.81x = 5,245.38 × 1,307.22
  4. Step 4: Simplify right side
    3,498.81x = 6,856,865.64
  5. Step 5: Solve for x
    x = 6,856,865.64/3,498.81
  6. Step 6: Final answer
    x = 1,959.77

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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.