Home / 1,787.16-2,684.88-1,057.26

Finding the Fourth Proportional to 1,787.16, 2,684.88 and 1,057.26

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Solution

The fourth proportional to 1,787.16, 2,684.88 and 1,057.26 is: 1,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.16 : 2,684.88 = 1,057.26 : x
  2. Step 2: Convert to fraction form
    1,787.16/2,684.88 = 1,057.26/x
  3. Step 3: Cross multiply
    1,787.16x = 2,684.88 × 1,057.26
  4. Step 4: Simplify right side
    1,787.16x = 2,838,616.23
  5. Step 5: Solve for x
    x = 2,838,616.23/1,787.16
  6. Step 6: Final answer
    x = 1,588.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.