Home / 3,128.01-4,689.63-1,895.09

Finding the Fourth Proportional to 3,128.01, 4,689.63 and 1,895.09

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Solution

The fourth proportional to 3,128.01, 4,689.63 and 1,895.09 is: 2,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.01 : 4,689.63 = 1,895.09 : x
  2. Step 2: Convert to fraction form
    3,128.01/4,689.63 = 1,895.09/x
  3. Step 3: Cross multiply
    3,128.01x = 4,689.63 × 1,895.09
  4. Step 4: Simplify right side
    3,128.01x = 8,887,247.47
  5. Step 5: Solve for x
    x = 8,887,247.47/3,128.01
  6. Step 6: Final answer
    x = 2,841.18

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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.