Home / 1,667.23-2,500.80-680.02

Finding the Fourth Proportional to 1,667.23, 2,500.80 and 680.02

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Solution

The fourth proportional to 1,667.23, 2,500.80 and 680.02 is: 1,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667.23 : 2,500.80 = 680.02 : x
  2. Step 2: Convert to fraction form
    1,667.23/2,500.80 = 680.02/x
  3. Step 3: Cross multiply
    1,667.23x = 2,500.80 × 680.02
  4. Step 4: Simplify right side
    1,667.23x = 1,700,594.02
  5. Step 5: Solve for x
    x = 1,700,594.02/1,667.23
  6. Step 6: Final answer
    x = 1,020.01

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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.