Home / 2,184.90-3,015.14-1,190.15

Finding the Fourth Proportional to 2,184.90, 3,015.14 and 1,190.15

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Solution

The fourth proportional to 2,184.90, 3,015.14 and 1,190.15 is: 1,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.90 : 3,015.14 = 1,190.15 : x
  2. Step 2: Convert to fraction form
    2,184.90/3,015.14 = 1,190.15/x
  3. Step 3: Cross multiply
    2,184.90x = 3,015.14 × 1,190.15
  4. Step 4: Simplify right side
    2,184.90x = 3,588,470.46
  5. Step 5: Solve for x
    x = 3,588,470.46/2,184.90
  6. Step 6: Final answer
    x = 1,642.40

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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.