Home / 3,603.67-4,972.21-2,187.32

Finding the Fourth Proportional to 3,603.67, 4,972.21 and 2,187.32

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Solution

The fourth proportional to 3,603.67, 4,972.21 and 2,187.32 is: 3,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.67 : 4,972.21 = 2,187.32 : x
  2. Step 2: Convert to fraction form
    3,603.67/4,972.21 = 2,187.32/x
  3. Step 3: Cross multiply
    3,603.67x = 4,972.21 × 2,187.32
  4. Step 4: Simplify right side
    3,603.67x = 10,875,814.38
  5. Step 5: Solve for x
    x = 10,875,814.38/3,603.67
  6. Step 6: Final answer
    x = 3,017.98

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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.