Home / 2,912.24-4,365.28-1,985.50

Finding the Fourth Proportional to 2,912.24, 4,365.28 and 1,985.50

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Solution

The fourth proportional to 2,912.24, 4,365.28 and 1,985.50 is: 2,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.24 : 4,365.28 = 1,985.50 : x
  2. Step 2: Convert to fraction form
    2,912.24/4,365.28 = 1,985.50/x
  3. Step 3: Cross multiply
    2,912.24x = 4,365.28 × 1,985.50
  4. Step 4: Simplify right side
    2,912.24x = 8,667,231.69
  5. Step 5: Solve for x
    x = 8,667,231.69/2,912.24
  6. Step 6: Final answer
    x = 2,976.14

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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.