Home / 3,603.68-5,402.40-2,140.16

Finding the Fourth Proportional to 3,603.68, 5,402.40 and 2,140.16

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Solution

The fourth proportional to 3,603.68, 5,402.40 and 2,140.16 is: 3,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.68 : 5,402.40 = 2,140.16 : x
  2. Step 2: Convert to fraction form
    3,603.68/5,402.40 = 2,140.16/x
  3. Step 3: Cross multiply
    3,603.68x = 5,402.40 × 2,140.16
  4. Step 4: Simplify right side
    3,603.68x = 11,562,000.38
  5. Step 5: Solve for x
    x = 11,562,000.38/3,603.68
  6. Step 6: Final answer
    x = 3,208.39

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1.5x scale

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.