Home / 1,267.60-1,897.78-1,007.97

Finding the Fourth Proportional to 1,267.60, 1,897.78 and 1,007.97

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Solution

The fourth proportional to 1,267.60, 1,897.78 and 1,007.97 is: 1,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.60 : 1,897.78 = 1,007.97 : x
  2. Step 2: Convert to fraction form
    1,267.60/1,897.78 = 1,007.97/x
  3. Step 3: Cross multiply
    1,267.60x = 1,897.78 × 1,007.97
  4. Step 4: Simplify right side
    1,267.60x = 1,912,905.31
  5. Step 5: Solve for x
    x = 1,912,905.31/1,267.60
  6. Step 6: Final answer
    x = 1,509.08

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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.