Home / 2,688.46-3,709.80-1,509.52

Finding the Fourth Proportional to 2,688.46, 3,709.80 and 1,509.52

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Solution

The fourth proportional to 2,688.46, 3,709.80 and 1,509.52 is: 2,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.46 : 3,709.80 = 1,509.52 : x
  2. Step 2: Convert to fraction form
    2,688.46/3,709.80 = 1,509.52/x
  3. Step 3: Cross multiply
    2,688.46x = 3,709.80 × 1,509.52
  4. Step 4: Simplify right side
    2,688.46x = 5,600,017.30
  5. Step 5: Solve for x
    x = 5,600,017.30/2,688.46
  6. Step 6: Final answer
    x = 2,082.98

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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.