Home / 3,519.15-5,278.08-1,297.50

Finding the Fourth Proportional to 3,519.15, 5,278.08 and 1,297.50

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Solution

The fourth proportional to 3,519.15, 5,278.08 and 1,297.50 is: 1,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.15 : 5,278.08 = 1,297.50 : x
  2. Step 2: Convert to fraction form
    3,519.15/5,278.08 = 1,297.50/x
  3. Step 3: Cross multiply
    3,519.15x = 5,278.08 × 1,297.50
  4. Step 4: Simplify right side
    3,519.15x = 6,848,308.80
  5. Step 5: Solve for x
    x = 6,848,308.80/3,519.15
  6. Step 6: Final answer
    x = 1,946.01

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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.