Home / 1,878.28-2,592.18-1,180.36

Finding the Fourth Proportional to 1,878.28, 2,592.18 and 1,180.36

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Solution

The fourth proportional to 1,878.28, 2,592.18 and 1,180.36 is: 1,628.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.28 : 2,592.18 = 1,180.36 : x
  2. Step 2: Convert to fraction form
    1,878.28/2,592.18 = 1,180.36/x
  3. Step 3: Cross multiply
    1,878.28x = 2,592.18 × 1,180.36
  4. Step 4: Simplify right side
    1,878.28x = 3,059,705.58
  5. Step 5: Solve for x
    x = 3,059,705.58/1,878.28
  6. Step 6: Final answer
    x = 1,628.99

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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.