Home / 2,900.09-4,002.14-1,641.15

Finding the Fourth Proportional to 2,900.09, 4,002.14 and 1,641.15

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Solution

The fourth proportional to 2,900.09, 4,002.14 and 1,641.15 is: 2,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.09 : 4,002.14 = 1,641.15 : x
  2. Step 2: Convert to fraction form
    2,900.09/4,002.14 = 1,641.15/x
  3. Step 3: Cross multiply
    2,900.09x = 4,002.14 × 1,641.15
  4. Step 4: Simplify right side
    2,900.09x = 6,568,116.16
  5. Step 5: Solve for x
    x = 6,568,116.16/2,900.09
  6. Step 6: Final answer
    x = 2,264.80

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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.