Home / 3,515.36-4,856.88-3,480.80

Finding the Fourth Proportional to 3,515.36, 4,856.88 and 3,480.80

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Solution

The fourth proportional to 3,515.36, 4,856.88 and 3,480.80 is: 4,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.36 : 4,856.88 = 3,480.80 : x
  2. Step 2: Convert to fraction form
    3,515.36/4,856.88 = 3,480.80/x
  3. Step 3: Cross multiply
    3,515.36x = 4,856.88 × 3,480.80
  4. Step 4: Simplify right side
    3,515.36x = 16,905,827.90
  5. Step 5: Solve for x
    x = 16,905,827.90/3,515.36
  6. Step 6: Final answer
    x = 4,809.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.