Home / 1,877.32-2,810.08-1,288.88

Finding the Fourth Proportional to 1,877.32, 2,810.08 and 1,288.88

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Solution

The fourth proportional to 1,877.32, 2,810.08 and 1,288.88 is: 1,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.32 : 2,810.08 = 1,288.88 : x
  2. Step 2: Convert to fraction form
    1,877.32/2,810.08 = 1,288.88/x
  3. Step 3: Cross multiply
    1,877.32x = 2,810.08 × 1,288.88
  4. Step 4: Simplify right side
    1,877.32x = 3,621,855.91
  5. Step 5: Solve for x
    x = 3,621,855.91/1,877.32
  6. Step 6: Final answer
    x = 1,929.27

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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.