Home / 3,613.50-4,986.75-2,215.98

Finding the Fourth Proportional to 3,613.50, 4,986.75 and 2,215.98

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Solution

The fourth proportional to 3,613.50, 4,986.75 and 2,215.98 is: 3,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.50 : 4,986.75 = 2,215.98 : x
  2. Step 2: Convert to fraction form
    3,613.50/4,986.75 = 2,215.98/x
  3. Step 3: Cross multiply
    3,613.50x = 4,986.75 × 2,215.98
  4. Step 4: Simplify right side
    3,613.50x = 11,050,538.27
  5. Step 5: Solve for x
    x = 11,050,538.27/3,613.50
  6. Step 6: Final answer
    x = 3,058.13

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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.