Home / 3,911.63-5,400.88-2,516.81

Finding the Fourth Proportional to 3,911.63, 5,400.88 and 2,516.81

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Solution

The fourth proportional to 3,911.63, 5,400.88 and 2,516.81 is: 3,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.63 : 5,400.88 = 2,516.81 : x
  2. Step 2: Convert to fraction form
    3,911.63/5,400.88 = 2,516.81/x
  3. Step 3: Cross multiply
    3,911.63x = 5,400.88 × 2,516.81
  4. Step 4: Simplify right side
    3,911.63x = 13,592,955.50
  5. Step 5: Solve for x
    x = 13,592,955.50/3,911.63
  6. Step 6: Final answer
    x = 3,475.01

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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.