Home / 3,509.78-5,265.87-1,563.34

Finding the Fourth Proportional to 3,509.78, 5,265.87 and 1,563.34

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Solution

The fourth proportional to 3,509.78, 5,265.87 and 1,563.34 is: 2,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.78 : 5,265.87 = 1,563.34 : x
  2. Step 2: Convert to fraction form
    3,509.78/5,265.87 = 1,563.34/x
  3. Step 3: Cross multiply
    3,509.78x = 5,265.87 × 1,563.34
  4. Step 4: Simplify right side
    3,509.78x = 8,232,345.21
  5. Step 5: Solve for x
    x = 8,232,345.21/3,509.78
  6. Step 6: Final answer
    x = 2,345.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.