Home / 1,207.39-1,661.98-1,051.87

Finding the Fourth Proportional to 1,207.39, 1,661.98 and 1,051.87

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Solution

The fourth proportional to 1,207.39, 1,661.98 and 1,051.87 is: 1,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.39 : 1,661.98 = 1,051.87 : x
  2. Step 2: Convert to fraction form
    1,207.39/1,661.98 = 1,051.87/x
  3. Step 3: Cross multiply
    1,207.39x = 1,661.98 × 1,051.87
  4. Step 4: Simplify right side
    1,207.39x = 1,748,186.90
  5. Step 5: Solve for x
    x = 1,748,186.90/1,207.39
  6. Step 6: Final answer
    x = 1,447.91

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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.