Home / 1,742.10-2,613.18-443.58

Finding the Fourth Proportional to 1,742.10, 2,613.18 and 443.58

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Solution

The fourth proportional to 1,742.10, 2,613.18 and 443.58 is: 665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.10 : 2,613.18 = 443.58 : x
  2. Step 2: Convert to fraction form
    1,742.10/2,613.18 = 443.58/x
  3. Step 3: Cross multiply
    1,742.10x = 2,613.18 × 443.58
  4. Step 4: Simplify right side
    1,742.10x = 1,159,154.38
  5. Step 5: Solve for x
    x = 1,159,154.38/1,742.10
  6. Step 6: Final answer
    x = 665.38

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1.5x scale

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.