Home / 3,813.76-5,263.19-2,135.16

Finding the Fourth Proportional to 3,813.76, 5,263.19 and 2,135.16

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Solution

The fourth proportional to 3,813.76, 5,263.19 and 2,135.16 is: 2,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.76 : 5,263.19 = 2,135.16 : x
  2. Step 2: Convert to fraction form
    3,813.76/5,263.19 = 2,135.16/x
  3. Step 3: Cross multiply
    3,813.76x = 5,263.19 × 2,135.16
  4. Step 4: Simplify right side
    3,813.76x = 11,237,762.10
  5. Step 5: Solve for x
    x = 11,237,762.10/3,813.76
  6. Step 6: Final answer
    x = 2,946.64

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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.