Home / 2,333.90-3,220.78-1,271.66

Finding the Fourth Proportional to 2,333.90, 3,220.78 and 1,271.66

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Solution

The fourth proportional to 2,333.90, 3,220.78 and 1,271.66 is: 1,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.90 : 3,220.78 = 1,271.66 : x
  2. Step 2: Convert to fraction form
    2,333.90/3,220.78 = 1,271.66/x
  3. Step 3: Cross multiply
    2,333.90x = 3,220.78 × 1,271.66
  4. Step 4: Simplify right side
    2,333.90x = 4,095,737.09
  5. Step 5: Solve for x
    x = 4,095,737.09/2,333.90
  6. Step 6: Final answer
    x = 1,754.89

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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.