Home / 1,872.95-2,808.40-1,563.12

Finding the Fourth Proportional to 1,872.95, 2,808.40 and 1,563.12

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Solution

The fourth proportional to 1,872.95, 2,808.40 and 1,563.12 is: 2,343.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.95 : 2,808.40 = 1,563.12 : x
  2. Step 2: Convert to fraction form
    1,872.95/2,808.40 = 1,563.12/x
  3. Step 3: Cross multiply
    1,872.95x = 2,808.40 × 1,563.12
  4. Step 4: Simplify right side
    1,872.95x = 4,389,866.21
  5. Step 5: Solve for x
    x = 4,389,866.21/1,872.95
  6. Step 6: Final answer
    x = 2,343.82

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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.