Home / 1,812.32-2,498.40-1,190.24

Finding the Fourth Proportional to 1,812.32, 2,498.40 and 1,190.24

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Solution

The fourth proportional to 1,812.32, 2,498.40 and 1,190.24 is: 1,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.32 : 2,498.40 = 1,190.24 : x
  2. Step 2: Convert to fraction form
    1,812.32/2,498.40 = 1,190.24/x
  3. Step 3: Cross multiply
    1,812.32x = 2,498.40 × 1,190.24
  4. Step 4: Simplify right side
    1,812.32x = 2,973,695.62
  5. Step 5: Solve for x
    x = 2,973,695.62/1,812.32
  6. Step 6: Final answer
    x = 1,640.82

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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.