Home / 6,987.21-10,480.95-2,603.79

Finding the Fourth Proportional to 6,987.21, 10,480.95 and 2,603.79

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Solution

The fourth proportional to 6,987.21, 10,480.95 and 2,603.79 is: 3,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.21 : 10,480.95 = 2,603.79 : x
  2. Step 2: Convert to fraction form
    6,987.21/10,480.95 = 2,603.79/x
  3. Step 3: Cross multiply
    6,987.21x = 10,480.95 × 2,603.79
  4. Step 4: Simplify right side
    6,987.21x = 27,290,192.80
  5. Step 5: Solve for x
    x = 27,290,192.80/6,987.21
  6. Step 6: Final answer
    x = 3,905.74

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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.