Home / 4,285.15-6,421.10-2,971.47

Finding the Fourth Proportional to 4,285.15, 6,421.10 and 2,971.47

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Solution

The fourth proportional to 4,285.15, 6,421.10 and 2,971.47 is: 4,452.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.15 : 6,421.10 = 2,971.47 : x
  2. Step 2: Convert to fraction form
    4,285.15/6,421.10 = 2,971.47/x
  3. Step 3: Cross multiply
    4,285.15x = 6,421.10 × 2,971.47
  4. Step 4: Simplify right side
    4,285.15x = 19,080,115.24
  5. Step 5: Solve for x
    x = 19,080,115.24/4,285.15
  6. Step 6: Final answer
    x = 4,452.62

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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.