Home / 1,047.09-1,447.69-1,001.19

Finding the Fourth Proportional to 1,047.09, 1,447.69 and 1,001.19

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Solution

The fourth proportional to 1,047.09, 1,447.69 and 1,001.19 is: 1,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.09 : 1,447.69 = 1,001.19 : x
  2. Step 2: Convert to fraction form
    1,047.09/1,447.69 = 1,001.19/x
  3. Step 3: Cross multiply
    1,047.09x = 1,447.69 × 1,001.19
  4. Step 4: Simplify right side
    1,047.09x = 1,449,417.55
  5. Step 5: Solve for x
    x = 1,449,417.55/1,047.09
  6. Step 6: Final answer
    x = 1,384.23

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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.