Home / 2,586.68-3,569.52-1,407.75

Finding the Fourth Proportional to 2,586.68, 3,569.52 and 1,407.75

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Solution

The fourth proportional to 2,586.68, 3,569.52 and 1,407.75 is: 1,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.68 : 3,569.52 = 1,407.75 : x
  2. Step 2: Convert to fraction form
    2,586.68/3,569.52 = 1,407.75/x
  3. Step 3: Cross multiply
    2,586.68x = 3,569.52 × 1,407.75
  4. Step 4: Simplify right side
    2,586.68x = 5,024,997.18
  5. Step 5: Solve for x
    x = 5,024,997.18/2,586.68
  6. Step 6: Final answer
    x = 1,942.64

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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.