Home / 1,612.80-2,225.61-1,219.14

Finding the Fourth Proportional to 1,612.80, 2,225.61 and 1,219.14

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Solution

The fourth proportional to 1,612.80, 2,225.61 and 1,219.14 is: 1,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.80 : 2,225.61 = 1,219.14 : x
  2. Step 2: Convert to fraction form
    1,612.80/2,225.61 = 1,219.14/x
  3. Step 3: Cross multiply
    1,612.80x = 2,225.61 × 1,219.14
  4. Step 4: Simplify right side
    1,612.80x = 2,713,330.18
  5. Step 5: Solve for x
    x = 2,713,330.18/1,612.80
  6. Step 6: Final answer
    x = 1,682.37

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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.