Home / 3,247.55-4,870.91-1,299.77

Finding the Fourth Proportional to 3,247.55, 4,870.91 and 1,299.77

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Solution

The fourth proportional to 3,247.55, 4,870.91 and 1,299.77 is: 1,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.55 : 4,870.91 = 1,299.77 : x
  2. Step 2: Convert to fraction form
    3,247.55/4,870.91 = 1,299.77/x
  3. Step 3: Cross multiply
    3,247.55x = 4,870.91 × 1,299.77
  4. Step 4: Simplify right side
    3,247.55x = 6,331,041.59
  5. Step 5: Solve for x
    x = 6,331,041.59/3,247.55
  6. Step 6: Final answer
    x = 1,949.49

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Double scale
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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.