Home / 1,767.63-2,436.80-1,242.03

Finding the Fourth Proportional to 1,767.63, 2,436.80 and 1,242.03

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Solution

The fourth proportional to 1,767.63, 2,436.80 and 1,242.03 is: 1,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.63 : 2,436.80 = 1,242.03 : x
  2. Step 2: Convert to fraction form
    1,767.63/2,436.80 = 1,242.03/x
  3. Step 3: Cross multiply
    1,767.63x = 2,436.80 × 1,242.03
  4. Step 4: Simplify right side
    1,767.63x = 3,026,572.49
  5. Step 5: Solve for x
    x = 3,026,572.49/1,767.63
  6. Step 6: Final answer
    x = 1,712.22

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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.