Home / 2,688.17-3,709.66-1,509.24

Finding the Fourth Proportional to 2,688.17, 3,709.66 and 1,509.24

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Solution

The fourth proportional to 2,688.17, 3,709.66 and 1,509.24 is: 2,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.17 : 3,709.66 = 1,509.24 : x
  2. Step 2: Convert to fraction form
    2,688.17/3,709.66 = 1,509.24/x
  3. Step 3: Cross multiply
    2,688.17x = 3,709.66 × 1,509.24
  4. Step 4: Simplify right side
    2,688.17x = 5,598,767.26
  5. Step 5: Solve for x
    x = 5,598,767.26/2,688.17
  6. Step 6: Final answer
    x = 2,082.74

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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.