Home / 6,468.12-9,703.52-2,085.40

Finding the Fourth Proportional to 6,468.12, 9,703.52 and 2,085.40

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Solution

The fourth proportional to 6,468.12, 9,703.52 and 2,085.40 is: 3,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,468.12 : 9,703.52 = 2,085.40 : x
  2. Step 2: Convert to fraction form
    6,468.12/9,703.52 = 2,085.40/x
  3. Step 3: Cross multiply
    6,468.12x = 9,703.52 × 2,085.40
  4. Step 4: Simplify right side
    6,468.12x = 20,235,720.61
  5. Step 5: Solve for x
    x = 20,235,720.61/6,468.12
  6. Step 6: Final answer
    x = 3,128.53

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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.