Home / 2,987.03-4,480.95-1,255.25

Finding the Fourth Proportional to 2,987.03, 4,480.95 and 1,255.25

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Solution

The fourth proportional to 2,987.03, 4,480.95 and 1,255.25 is: 1,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.03 : 4,480.95 = 1,255.25 : x
  2. Step 2: Convert to fraction form
    2,987.03/4,480.95 = 1,255.25/x
  3. Step 3: Cross multiply
    2,987.03x = 4,480.95 × 1,255.25
  4. Step 4: Simplify right side
    2,987.03x = 5,624,712.49
  5. Step 5: Solve for x
    x = 5,624,712.49/2,987.03
  6. Step 6: Final answer
    x = 1,883.05

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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.