Home / 2,688.06-3,709.98-1,569.18

Finding the Fourth Proportional to 2,688.06, 3,709.98 and 1,569.18

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Solution

The fourth proportional to 2,688.06, 3,709.98 and 1,569.18 is: 2,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.06 : 3,709.98 = 1,569.18 : x
  2. Step 2: Convert to fraction form
    2,688.06/3,709.98 = 1,569.18/x
  3. Step 3: Cross multiply
    2,688.06x = 3,709.98 × 1,569.18
  4. Step 4: Simplify right side
    2,688.06x = 5,821,626.42
  5. Step 5: Solve for x
    x = 5,821,626.42/2,688.06
  6. Step 6: Final answer
    x = 2,165.74

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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.