Home / 2,645.06-3,962.10-1,259.60

Finding the Fourth Proportional to 2,645.06, 3,962.10 and 1,259.60

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Solution

The fourth proportional to 2,645.06, 3,962.10 and 1,259.60 is: 1,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.06 : 3,962.10 = 1,259.60 : x
  2. Step 2: Convert to fraction form
    2,645.06/3,962.10 = 1,259.60/x
  3. Step 3: Cross multiply
    2,645.06x = 3,962.10 × 1,259.60
  4. Step 4: Simplify right side
    2,645.06x = 4,990,661.16
  5. Step 5: Solve for x
    x = 4,990,661.16/2,645.06
  6. Step 6: Final answer
    x = 1,886.79

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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.