Home / 2,655.42-3,663.81-1,607.28

Finding the Fourth Proportional to 2,655.42, 3,663.81 and 1,607.28

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Solution

The fourth proportional to 2,655.42, 3,663.81 and 1,607.28 is: 2,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.42 : 3,663.81 = 1,607.28 : x
  2. Step 2: Convert to fraction form
    2,655.42/3,663.81 = 1,607.28/x
  3. Step 3: Cross multiply
    2,655.42x = 3,663.81 × 1,607.28
  4. Step 4: Simplify right side
    2,655.42x = 5,888,768.54
  5. Step 5: Solve for x
    x = 5,888,768.54/2,655.42
  6. Step 6: Final answer
    x = 2,217.64

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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.