Home / 2,913.38-4,020.66-1,779.53

Finding the Fourth Proportional to 2,913.38, 4,020.66 and 1,779.53

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Solution

The fourth proportional to 2,913.38, 4,020.66 and 1,779.53 is: 2,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.38 : 4,020.66 = 1,779.53 : x
  2. Step 2: Convert to fraction form
    2,913.38/4,020.66 = 1,779.53/x
  3. Step 3: Cross multiply
    2,913.38x = 4,020.66 × 1,779.53
  4. Step 4: Simplify right side
    2,913.38x = 7,154,885.09
  5. Step 5: Solve for x
    x = 7,154,885.09/2,913.38
  6. Step 6: Final answer
    x = 2,455.87

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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.