Home / 3,210.24-4,815.36-1,749

Finding the Fourth Proportional to 3,210.24, 4,815.36 and 1,749

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Solution

The fourth proportional to 3,210.24, 4,815.36 and 1,749 is: 2,623.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.24 : 4,815.36 = 1,749 : x
  2. Step 2: Convert to fraction form
    3,210.24/4,815.36 = 1,749/x
  3. Step 3: Cross multiply
    3,210.24x = 4,815.36 × 1,749
  4. Step 4: Simplify right side
    3,210.24x = 8,422,064.64
  5. Step 5: Solve for x
    x = 8,422,064.64/3,210.24
  6. Step 6: Final answer
    x = 2,623.50

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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.