Home / 1,772.16-2,432.58-1,571.28

Finding the Fourth Proportional to 1,772.16, 2,432.58 and 1,571.28

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Solution

The fourth proportional to 1,772.16, 2,432.58 and 1,571.28 is: 2,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.16 : 2,432.58 = 1,571.28 : x
  2. Step 2: Convert to fraction form
    1,772.16/2,432.58 = 1,571.28/x
  3. Step 3: Cross multiply
    1,772.16x = 2,432.58 × 1,571.28
  4. Step 4: Simplify right side
    1,772.16x = 3,822,264.30
  5. Step 5: Solve for x
    x = 3,822,264.30/1,772.16
  6. Step 6: Final answer
    x = 2,156.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.