Home / 1,778.51-2,667.45-1,047.23

Finding the Fourth Proportional to 1,778.51, 2,667.45 and 1,047.23

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Solution

The fourth proportional to 1,778.51, 2,667.45 and 1,047.23 is: 1,570.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.51 : 2,667.45 = 1,047.23 : x
  2. Step 2: Convert to fraction form
    1,778.51/2,667.45 = 1,047.23/x
  3. Step 3: Cross multiply
    1,778.51x = 2,667.45 × 1,047.23
  4. Step 4: Simplify right side
    1,778.51x = 2,793,433.66
  5. Step 5: Solve for x
    x = 2,793,433.66/1,778.51
  6. Step 6: Final answer
    x = 1,570.66

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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.