Home / 2,721.45-3,755.67-1,526.40

Finding the Fourth Proportional to 2,721.45, 3,755.67 and 1,526.40

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Solution

The fourth proportional to 2,721.45, 3,755.67 and 1,526.40 is: 2,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.45 : 3,755.67 = 1,526.40 : x
  2. Step 2: Convert to fraction form
    2,721.45/3,755.67 = 1,526.40/x
  3. Step 3: Cross multiply
    2,721.45x = 3,755.67 × 1,526.40
  4. Step 4: Simplify right side
    2,721.45x = 5,732,654.69
  5. Step 5: Solve for x
    x = 5,732,654.69/2,721.45
  6. Step 6: Final answer
    x = 2,106.47

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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.