Home / 2,586.85-3,569.67-1,407.90

Finding the Fourth Proportional to 2,586.85, 3,569.67 and 1,407.90

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Solution

The fourth proportional to 2,586.85, 3,569.67 and 1,407.90 is: 1,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.85 : 3,569.67 = 1,407.90 : x
  2. Step 2: Convert to fraction form
    2,586.85/3,569.67 = 1,407.90/x
  3. Step 3: Cross multiply
    2,586.85x = 3,569.67 × 1,407.90
  4. Step 4: Simplify right side
    2,586.85x = 5,025,738.39
  5. Step 5: Solve for x
    x = 5,025,738.39/2,586.85
  6. Step 6: Final answer
    x = 1,942.80

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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.