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Finding the Fourth Proportional to 3,603.96, 4,976.28 and 2,820.24

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Solution

The fourth proportional to 3,603.96, 4,976.28 and 2,820.24 is: 3,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.96 : 4,976.28 = 2,820.24 : x
  2. Step 2: Convert to fraction form
    3,603.96/4,976.28 = 2,820.24/x
  3. Step 3: Cross multiply
    3,603.96x = 4,976.28 × 2,820.24
  4. Step 4: Simplify right side
    3,603.96x = 14,034,303.91
  5. Step 5: Solve for x
    x = 14,034,303.91/3,603.96
  6. Step 6: Final answer
    x = 3,894.13

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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.