Home / 1,755.45-2,422.44-1,009.35

Finding the Fourth Proportional to 1,755.45, 2,422.44 and 1,009.35

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Solution

The fourth proportional to 1,755.45, 2,422.44 and 1,009.35 is: 1,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.45 : 2,422.44 = 1,009.35 : x
  2. Step 2: Convert to fraction form
    1,755.45/2,422.44 = 1,009.35/x
  3. Step 3: Cross multiply
    1,755.45x = 2,422.44 × 1,009.35
  4. Step 4: Simplify right side
    1,755.45x = 2,445,089.81
  5. Step 5: Solve for x
    x = 2,445,089.81/1,755.45
  6. Step 6: Final answer
    x = 1,392.86

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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.