Home / 1,563.24-2,155.62-1,406.52

Finding the Fourth Proportional to 1,563.24, 2,155.62 and 1,406.52

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Solution

The fourth proportional to 1,563.24, 2,155.62 and 1,406.52 is: 1,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.24 : 2,155.62 = 1,406.52 : x
  2. Step 2: Convert to fraction form
    1,563.24/2,155.62 = 1,406.52/x
  3. Step 3: Cross multiply
    1,563.24x = 2,155.62 × 1,406.52
  4. Step 4: Simplify right side
    1,563.24x = 3,031,922.64
  5. Step 5: Solve for x
    x = 3,031,922.64/1,563.24
  6. Step 6: Final answer
    x = 1,939.51

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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.