Home / 2,669.40-4,002.90-1,025.40

Finding the Fourth Proportional to 2,669.40, 4,002.90 and 1,025.40

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Solution

The fourth proportional to 2,669.40, 4,002.90 and 1,025.40 is: 1,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.40 : 4,002.90 = 1,025.40 : x
  2. Step 2: Convert to fraction form
    2,669.40/4,002.90 = 1,025.40/x
  3. Step 3: Cross multiply
    2,669.40x = 4,002.90 × 1,025.40
  4. Step 4: Simplify right side
    2,669.40x = 4,104,573.66
  5. Step 5: Solve for x
    x = 4,104,573.66/2,669.40
  6. Step 6: Final answer
    x = 1,537.64

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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.