Home / 3,603.42-5,406.70-1,265.10

Finding the Fourth Proportional to 3,603.42, 5,406.70 and 1,265.10

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Solution

The fourth proportional to 3,603.42, 5,406.70 and 1,265.10 is: 1,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.42 : 5,406.70 = 1,265.10 : x
  2. Step 2: Convert to fraction form
    3,603.42/5,406.70 = 1,265.10/x
  3. Step 3: Cross multiply
    3,603.42x = 5,406.70 × 1,265.10
  4. Step 4: Simplify right side
    3,603.42x = 6,840,016.17
  5. Step 5: Solve for x
    x = 6,840,016.17/3,603.42
  6. Step 6: Final answer
    x = 1,898.20

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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.