Home / 1,246.74-1,864.98-1,047.72

Finding the Fourth Proportional to 1,246.74, 1,864.98 and 1,047.72

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Solution

The fourth proportional to 1,246.74, 1,864.98 and 1,047.72 is: 1,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.74 : 1,864.98 = 1,047.72 : x
  2. Step 2: Convert to fraction form
    1,246.74/1,864.98 = 1,047.72/x
  3. Step 3: Cross multiply
    1,246.74x = 1,864.98 × 1,047.72
  4. Step 4: Simplify right side
    1,246.74x = 1,953,976.85
  5. Step 5: Solve for x
    x = 1,953,976.85/1,246.74
  6. Step 6: Final answer
    x = 1,567.27

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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.