Home / 1,871.48-2,576.50-1,779.12

Finding the Fourth Proportional to 1,871.48, 2,576.50 and 1,779.12

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Solution

The fourth proportional to 1,871.48, 2,576.50 and 1,779.12 is: 2,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.48 : 2,576.50 = 1,779.12 : x
  2. Step 2: Convert to fraction form
    1,871.48/2,576.50 = 1,779.12/x
  3. Step 3: Cross multiply
    1,871.48x = 2,576.50 × 1,779.12
  4. Step 4: Simplify right side
    1,871.48x = 4,583,902.68
  5. Step 5: Solve for x
    x = 4,583,902.68/1,871.48
  6. Step 6: Final answer
    x = 2,449.35

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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.