Home / 6,285.29-9,421.40-3,120.64

Finding the Fourth Proportional to 6,285.29, 9,421.40 and 3,120.64

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Solution

The fourth proportional to 6,285.29, 9,421.40 and 3,120.64 is: 4,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,285.29 : 9,421.40 = 3,120.64 : x
  2. Step 2: Convert to fraction form
    6,285.29/9,421.40 = 3,120.64/x
  3. Step 3: Cross multiply
    6,285.29x = 9,421.40 × 3,120.64
  4. Step 4: Simplify right side
    6,285.29x = 29,400,797.70
  5. Step 5: Solve for x
    x = 29,400,797.70/6,285.29
  6. Step 6: Final answer
    x = 4,677.72

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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.