Home / 1,817.92-2,509.32-1,228.24

Finding the Fourth Proportional to 1,817.92, 2,509.32 and 1,228.24

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Solution

The fourth proportional to 1,817.92, 2,509.32 and 1,228.24 is: 1,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.92 : 2,509.32 = 1,228.24 : x
  2. Step 2: Convert to fraction form
    1,817.92/2,509.32 = 1,228.24/x
  3. Step 3: Cross multiply
    1,817.92x = 2,509.32 × 1,228.24
  4. Step 4: Simplify right side
    1,817.92x = 3,082,047.20
  5. Step 5: Solve for x
    x = 3,082,047.20/1,817.92
  6. Step 6: Final answer
    x = 1,695.37

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1.5x scale

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.