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Finding the Fourth Proportional to 2,653.80, 3,659.76 and 1,801.32

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Solution

The fourth proportional to 2,653.80, 3,659.76 and 1,801.32 is: 2,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.80 : 3,659.76 = 1,801.32 : x
  2. Step 2: Convert to fraction form
    2,653.80/3,659.76 = 1,801.32/x
  3. Step 3: Cross multiply
    2,653.80x = 3,659.76 × 1,801.32
  4. Step 4: Simplify right side
    2,653.80x = 6,592,398.88
  5. Step 5: Solve for x
    x = 6,592,398.88/2,653.80
  6. Step 6: Final answer
    x = 2,484.14

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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.