Home / 1,809.22-2,490.38-1,575.94

Finding the Fourth Proportional to 1,809.22, 2,490.38 and 1,575.94

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Solution

The fourth proportional to 1,809.22, 2,490.38 and 1,575.94 is: 2,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.22 : 2,490.38 = 1,575.94 : x
  2. Step 2: Convert to fraction form
    1,809.22/2,490.38 = 1,575.94/x
  3. Step 3: Cross multiply
    1,809.22x = 2,490.38 × 1,575.94
  4. Step 4: Simplify right side
    1,809.22x = 3,924,689.46
  5. Step 5: Solve for x
    x = 3,924,689.46/1,809.22
  6. Step 6: Final answer
    x = 2,169.27

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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.