Home / 2,615.85-3,609.77-1,670.31

Finding the Fourth Proportional to 2,615.85, 3,609.77 and 1,670.31

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Solution

The fourth proportional to 2,615.85, 3,609.77 and 1,670.31 is: 2,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.85 : 3,609.77 = 1,670.31 : x
  2. Step 2: Convert to fraction form
    2,615.85/3,609.77 = 1,670.31/x
  3. Step 3: Cross multiply
    2,615.85x = 3,609.77 × 1,670.31
  4. Step 4: Simplify right side
    2,615.85x = 6,029,426.58
  5. Step 5: Solve for x
    x = 6,029,426.58/2,615.85
  6. Step 6: Final answer
    x = 2,304.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.