Home / 5,640.30-8,458.02-1,742.58

Finding the Fourth Proportional to 5,640.30, 8,458.02 and 1,742.58

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Solution

The fourth proportional to 5,640.30, 8,458.02 and 1,742.58 is: 2,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.30 : 8,458.02 = 1,742.58 : x
  2. Step 2: Convert to fraction form
    5,640.30/8,458.02 = 1,742.58/x
  3. Step 3: Cross multiply
    5,640.30x = 8,458.02 × 1,742.58
  4. Step 4: Simplify right side
    5,640.30x = 14,738,776.49
  5. Step 5: Solve for x
    x = 14,738,776.49/5,640.30
  6. Step 6: Final answer
    x = 2,613.12

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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.