Home / 1,772.15-2,444.18-1,538.87

Finding the Fourth Proportional to 1,772.15, 2,444.18 and 1,538.87

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Solution

The fourth proportional to 1,772.15, 2,444.18 and 1,538.87 is: 2,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.15 : 2,444.18 = 1,538.87 : x
  2. Step 2: Convert to fraction form
    1,772.15/2,444.18 = 1,538.87/x
  3. Step 3: Cross multiply
    1,772.15x = 2,444.18 × 1,538.87
  4. Step 4: Simplify right side
    1,772.15x = 3,761,255.36
  5. Step 5: Solve for x
    x = 3,761,255.36/1,772.15
  6. Step 6: Final answer
    x = 2,122.43

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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.