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Finding the Fourth Proportional to 1,368.98, 2,053.79 and 444.54

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Solution

The fourth proportional to 1,368.98, 2,053.79 and 444.54 is: 666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.98 : 2,053.79 = 444.54 : x
  2. Step 2: Convert to fraction form
    1,368.98/2,053.79 = 444.54/x
  3. Step 3: Cross multiply
    1,368.98x = 2,053.79 × 444.54
  4. Step 4: Simplify right side
    1,368.98x = 912,985.22
  5. Step 5: Solve for x
    x = 912,985.22/1,368.98
  6. Step 6: Final answer
    x = 666.91

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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.