Home / 1,878.32-2,815.32-1,011.44

Finding the Fourth Proportional to 1,878.32, 2,815.32 and 1,011.44

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Solution

The fourth proportional to 1,878.32, 2,815.32 and 1,011.44 is: 1,516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.32 : 2,815.32 = 1,011.44 : x
  2. Step 2: Convert to fraction form
    1,878.32/2,815.32 = 1,011.44/x
  3. Step 3: Cross multiply
    1,878.32x = 2,815.32 × 1,011.44
  4. Step 4: Simplify right side
    1,878.32x = 2,847,527.26
  5. Step 5: Solve for x
    x = 2,847,527.26/1,878.32
  6. Step 6: Final answer
    x = 1,516.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.