Home / 1,152.80-1,736.90-1,043.26

Finding the Fourth Proportional to 1,152.80, 1,736.90 and 1,043.26

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Solution

The fourth proportional to 1,152.80, 1,736.90 and 1,043.26 is: 1,571.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.80 : 1,736.90 = 1,043.26 : x
  2. Step 2: Convert to fraction form
    1,152.80/1,736.90 = 1,043.26/x
  3. Step 3: Cross multiply
    1,152.80x = 1,736.90 × 1,043.26
  4. Step 4: Simplify right side
    1,152.80x = 1,812,038.29
  5. Step 5: Solve for x
    x = 1,812,038.29/1,152.80
  6. Step 6: Final answer
    x = 1,571.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.