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Finding the Fourth Proportional to 1,267.66, 1,899.87 and 573.34

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Solution

The fourth proportional to 1,267.66, 1,899.87 and 573.34 is: 859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.66 : 1,899.87 = 573.34 : x
  2. Step 2: Convert to fraction form
    1,267.66/1,899.87 = 573.34/x
  3. Step 3: Cross multiply
    1,267.66x = 1,899.87 × 573.34
  4. Step 4: Simplify right side
    1,267.66x = 1,089,271.47
  5. Step 5: Solve for x
    x = 1,089,271.47/1,267.66
  6. Step 6: Final answer
    x = 859.28

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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.