Home / 3,265.09-4,509-2,790.19

Finding the Fourth Proportional to 3,265.09, 4,509 and 2,790.19

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Solution

The fourth proportional to 3,265.09, 4,509 and 2,790.19 is: 3,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,265.09 : 4,509 = 2,790.19 : x
  2. Step 2: Convert to fraction form
    3,265.09/4,509 = 2,790.19/x
  3. Step 3: Cross multiply
    3,265.09x = 4,509 × 2,790.19
  4. Step 4: Simplify right side
    3,265.09x = 12,580,966.71
  5. Step 5: Solve for x
    x = 12,580,966.71/3,265.09
  6. Step 6: Final answer
    x = 3,853.18

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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.