Home / 2,220.75-3,064.64-1,336.53

Finding the Fourth Proportional to 2,220.75, 3,064.64 and 1,336.53

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Solution

The fourth proportional to 2,220.75, 3,064.64 and 1,336.53 is: 1,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.75 : 3,064.64 = 1,336.53 : x
  2. Step 2: Convert to fraction form
    2,220.75/3,064.64 = 1,336.53/x
  3. Step 3: Cross multiply
    2,220.75x = 3,064.64 × 1,336.53
  4. Step 4: Simplify right side
    2,220.75x = 4,095,988.11
  5. Step 5: Solve for x
    x = 4,095,988.11/2,220.75
  6. Step 6: Final answer
    x = 1,844.42

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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.