Home / 2,992.19-4,131.51-1,875.15

Finding the Fourth Proportional to 2,992.19, 4,131.51 and 1,875.15

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Solution

The fourth proportional to 2,992.19, 4,131.51 and 1,875.15 is: 2,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.19 : 4,131.51 = 1,875.15 : x
  2. Step 2: Convert to fraction form
    2,992.19/4,131.51 = 1,875.15/x
  3. Step 3: Cross multiply
    2,992.19x = 4,131.51 × 1,875.15
  4. Step 4: Simplify right side
    2,992.19x = 7,747,193.94
  5. Step 5: Solve for x
    x = 7,747,193.94/2,992.19
  6. Step 6: Final answer
    x = 2,589.14

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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.