Home / 1,933.18-2,667.99-1,147.30

Finding the Fourth Proportional to 1,933.18, 2,667.99 and 1,147.30

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Solution

The fourth proportional to 1,933.18, 2,667.99 and 1,147.30 is: 1,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.18 : 2,667.99 = 1,147.30 : x
  2. Step 2: Convert to fraction form
    1,933.18/2,667.99 = 1,147.30/x
  3. Step 3: Cross multiply
    1,933.18x = 2,667.99 × 1,147.30
  4. Step 4: Simplify right side
    1,933.18x = 3,060,984.93
  5. Step 5: Solve for x
    x = 3,060,984.93/1,933.18
  6. Step 6: Final answer
    x = 1,583.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.