Home / 2,913.19-4,020.10-1,586.81

Finding the Fourth Proportional to 2,913.19, 4,020.10 and 1,586.81

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Solution

The fourth proportional to 2,913.19, 4,020.10 and 1,586.81 is: 2,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.19 : 4,020.10 = 1,586.81 : x
  2. Step 2: Convert to fraction form
    2,913.19/4,020.10 = 1,586.81/x
  3. Step 3: Cross multiply
    2,913.19x = 4,020.10 × 1,586.81
  4. Step 4: Simplify right side
    2,913.19x = 6,379,140.96
  5. Step 5: Solve for x
    x = 6,379,140.96/2,913.19
  6. Step 6: Final answer
    x = 2,189.75

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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.