Home / 3,614.90-5,420.64-1,667.30

Finding the Fourth Proportional to 3,614.90, 5,420.64 and 1,667.30

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Solution

The fourth proportional to 3,614.90, 5,420.64 and 1,667.30 is: 2,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.90 : 5,420.64 = 1,667.30 : x
  2. Step 2: Convert to fraction form
    3,614.90/5,420.64 = 1,667.30/x
  3. Step 3: Cross multiply
    3,614.90x = 5,420.64 × 1,667.30
  4. Step 4: Simplify right side
    3,614.90x = 9,037,833.07
  5. Step 5: Solve for x
    x = 9,037,833.07/3,614.90
  6. Step 6: Final answer
    x = 2,500.16

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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.