Home / 2,603.64-3,905.33-655.86

Finding the Fourth Proportional to 2,603.64, 3,905.33 and 655.86

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Solution

The fourth proportional to 2,603.64, 3,905.33 and 655.86 is: 983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.64 : 3,905.33 = 655.86 : x
  2. Step 2: Convert to fraction form
    2,603.64/3,905.33 = 655.86/x
  3. Step 3: Cross multiply
    2,603.64x = 3,905.33 × 655.86
  4. Step 4: Simplify right side
    2,603.64x = 2,561,364.79
  5. Step 5: Solve for x
    x = 2,561,364.79/2,603.64
  6. Step 6: Final answer
    x = 983.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.