Home / 1,613.46-2,228.10-1,553.28

Finding the Fourth Proportional to 1,613.46, 2,228.10 and 1,553.28

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Solution

The fourth proportional to 1,613.46, 2,228.10 and 1,553.28 is: 2,144.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.46 : 2,228.10 = 1,553.28 : x
  2. Step 2: Convert to fraction form
    1,613.46/2,228.10 = 1,553.28/x
  3. Step 3: Cross multiply
    1,613.46x = 2,228.10 × 1,553.28
  4. Step 4: Simplify right side
    1,613.46x = 3,460,863.17
  5. Step 5: Solve for x
    x = 3,460,863.17/1,613.46
  6. Step 6: Final answer
    x = 2,144.99

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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.