Home / 2,221.68-3,064.95-1,336.98

Finding the Fourth Proportional to 2,221.68, 3,064.95 and 1,336.98

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Solution

The fourth proportional to 2,221.68, 3,064.95 and 1,336.98 is: 1,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.68 : 3,064.95 = 1,336.98 : x
  2. Step 2: Convert to fraction form
    2,221.68/3,064.95 = 1,336.98/x
  3. Step 3: Cross multiply
    2,221.68x = 3,064.95 × 1,336.98
  4. Step 4: Simplify right side
    2,221.68x = 4,097,776.85
  5. Step 5: Solve for x
    x = 4,097,776.85/2,221.68
  6. Step 6: Final answer
    x = 1,844.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.