Home / 3,215.67-4,827.93-1,656.96

Finding the Fourth Proportional to 3,215.67, 4,827.93 and 1,656.96

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Solution

The fourth proportional to 3,215.67, 4,827.93 and 1,656.96 is: 2,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.67 : 4,827.93 = 1,656.96 : x
  2. Step 2: Convert to fraction form
    3,215.67/4,827.93 = 1,656.96/x
  3. Step 3: Cross multiply
    3,215.67x = 4,827.93 × 1,656.96
  4. Step 4: Simplify right side
    3,215.67x = 7,999,686.89
  5. Step 5: Solve for x
    x = 7,999,686.89/3,215.67
  6. Step 6: Final answer
    x = 2,487.72

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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.