Home / 1,898.28-2,619.04-1,112.32

Finding the Fourth Proportional to 1,898.28, 2,619.04 and 1,112.32

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Solution

The fourth proportional to 1,898.28, 2,619.04 and 1,112.32 is: 1,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.28 : 2,619.04 = 1,112.32 : x
  2. Step 2: Convert to fraction form
    1,898.28/2,619.04 = 1,112.32/x
  3. Step 3: Cross multiply
    1,898.28x = 2,619.04 × 1,112.32
  4. Step 4: Simplify right side
    1,898.28x = 2,913,210.57
  5. Step 5: Solve for x
    x = 2,913,210.57/1,898.28
  6. Step 6: Final answer
    x = 1,534.66

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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.