Home / 3,472.16-5,206.64-1,279.35

Finding the Fourth Proportional to 3,472.16, 5,206.64 and 1,279.35

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Solution

The fourth proportional to 3,472.16, 5,206.64 and 1,279.35 is: 1,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.16 : 5,206.64 = 1,279.35 : x
  2. Step 2: Convert to fraction form
    3,472.16/5,206.64 = 1,279.35/x
  3. Step 3: Cross multiply
    3,472.16x = 5,206.64 × 1,279.35
  4. Step 4: Simplify right side
    3,472.16x = 6,661,118.08
  5. Step 5: Solve for x
    x = 6,661,118.08/3,472.16
  6. Step 6: Final answer
    x = 1,918.44

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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.