Home / 3,603.90-4,972.41-2,858.70

Finding the Fourth Proportional to 3,603.90, 4,972.41 and 2,858.70

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Solution

The fourth proportional to 3,603.90, 4,972.41 and 2,858.70 is: 3,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.90 : 4,972.41 = 2,858.70 : x
  2. Step 2: Convert to fraction form
    3,603.90/4,972.41 = 2,858.70/x
  3. Step 3: Cross multiply
    3,603.90x = 4,972.41 × 2,858.70
  4. Step 4: Simplify right side
    3,603.90x = 14,214,628.47
  5. Step 5: Solve for x
    x = 14,214,628.47/3,603.90
  6. Step 6: Final answer
    x = 3,944.23

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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.