Home / 1,772.19-2,444.38-1,535.72

Finding the Fourth Proportional to 1,772.19, 2,444.38 and 1,535.72

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Solution

The fourth proportional to 1,772.19, 2,444.38 and 1,535.72 is: 2,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.19 : 2,444.38 = 1,535.72 : x
  2. Step 2: Convert to fraction form
    1,772.19/2,444.38 = 1,535.72/x
  3. Step 3: Cross multiply
    1,772.19x = 2,444.38 × 1,535.72
  4. Step 4: Simplify right side
    1,772.19x = 3,753,883.25
  5. Step 5: Solve for x
    x = 3,753,883.25/1,772.19
  6. Step 6: Final answer
    x = 2,118.22

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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.