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Finding the Fourth Proportional to 1,267.59, 1,901.36 and 573.77

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Solution

The fourth proportional to 1,267.59, 1,901.36 and 573.77 is: 860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.59 : 1,901.36 = 573.77 : x
  2. Step 2: Convert to fraction form
    1,267.59/1,901.36 = 573.77/x
  3. Step 3: Cross multiply
    1,267.59x = 1,901.36 × 573.77
  4. Step 4: Simplify right side
    1,267.59x = 1,090,949.52
  5. Step 5: Solve for x
    x = 1,090,949.52/1,267.59
  6. Step 6: Final answer
    x = 860.65

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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.