Home / 3,504.31-5,256.60-1,312.81

Finding the Fourth Proportional to 3,504.31, 5,256.60 and 1,312.81

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Solution

The fourth proportional to 3,504.31, 5,256.60 and 1,312.81 is: 1,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.31 : 5,256.60 = 1,312.81 : x
  2. Step 2: Convert to fraction form
    3,504.31/5,256.60 = 1,312.81/x
  3. Step 3: Cross multiply
    3,504.31x = 5,256.60 × 1,312.81
  4. Step 4: Simplify right side
    3,504.31x = 6,900,917.05
  5. Step 5: Solve for x
    x = 6,900,917.05/3,504.31
  6. Step 6: Final answer
    x = 1,969.27

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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.