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Finding the Fourth Proportional to 2,772.51, 3,826.16 and 1,653.63

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Solution

The fourth proportional to 2,772.51, 3,826.16 and 1,653.63 is: 2,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.51 : 3,826.16 = 1,653.63 : x
  2. Step 2: Convert to fraction form
    2,772.51/3,826.16 = 1,653.63/x
  3. Step 3: Cross multiply
    2,772.51x = 3,826.16 × 1,653.63
  4. Step 4: Simplify right side
    2,772.51x = 6,327,044.69
  5. Step 5: Solve for x
    x = 6,327,044.69/2,772.51
  6. Step 6: Final answer
    x = 2,282.06

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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.