Home / 1,742.10-2,613.90-1,012.30

Finding the Fourth Proportional to 1,742.10, 2,613.90 and 1,012.30

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Solution

The fourth proportional to 1,742.10, 2,613.90 and 1,012.30 is: 1,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.10 : 2,613.90 = 1,012.30 : x
  2. Step 2: Convert to fraction form
    1,742.10/2,613.90 = 1,012.30/x
  3. Step 3: Cross multiply
    1,742.10x = 2,613.90 × 1,012.30
  4. Step 4: Simplify right side
    1,742.10x = 2,646,050.97
  5. Step 5: Solve for x
    x = 2,646,050.97/1,742.10
  6. Step 6: Final answer
    x = 1,518.89

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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.