Home / 2,586.70-3,569.64-1,407.74

Finding the Fourth Proportional to 2,586.70, 3,569.64 and 1,407.74

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Solution

The fourth proportional to 2,586.70, 3,569.64 and 1,407.74 is: 1,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.70 : 3,569.64 = 1,407.74 : x
  2. Step 2: Convert to fraction form
    2,586.70/3,569.64 = 1,407.74/x
  3. Step 3: Cross multiply
    2,586.70x = 3,569.64 × 1,407.74
  4. Step 4: Simplify right side
    2,586.70x = 5,025,125.01
  5. Step 5: Solve for x
    x = 5,025,125.01/2,586.70
  6. Step 6: Final answer
    x = 1,942.68

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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.