Home / 1,613.06-2,226.21-983.96

Finding the Fourth Proportional to 1,613.06, 2,226.21 and 983.96

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Solution

The fourth proportional to 1,613.06, 2,226.21 and 983.96 is: 1,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.06 : 2,226.21 = 983.96 : x
  2. Step 2: Convert to fraction form
    1,613.06/2,226.21 = 983.96/x
  3. Step 3: Cross multiply
    1,613.06x = 2,226.21 × 983.96
  4. Step 4: Simplify right side
    1,613.06x = 2,190,490.46
  5. Step 5: Solve for x
    x = 2,190,490.46/1,613.06
  6. Step 6: Final answer
    x = 1,357.98

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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.