Home / 6,403.64-9,605.88-2,020.48

Finding the Fourth Proportional to 6,403.64, 9,605.88 and 2,020.48

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Solution

The fourth proportional to 6,403.64, 9,605.88 and 2,020.48 is: 3,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.64 : 9,605.88 = 2,020.48 : x
  2. Step 2: Convert to fraction form
    6,403.64/9,605.88 = 2,020.48/x
  3. Step 3: Cross multiply
    6,403.64x = 9,605.88 × 2,020.48
  4. Step 4: Simplify right side
    6,403.64x = 19,408,488.42
  5. Step 5: Solve for x
    x = 19,408,488.42/6,403.64
  6. Step 6: Final answer
    x = 3,030.85

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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.