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Finding the Fourth Proportional to 1,368.88, 2,053.50 and 444.13

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Solution

The fourth proportional to 1,368.88, 2,053.50 and 444.13 is: 666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.88 : 2,053.50 = 444.13 : x
  2. Step 2: Convert to fraction form
    1,368.88/2,053.50 = 444.13/x
  3. Step 3: Cross multiply
    1,368.88x = 2,053.50 × 444.13
  4. Step 4: Simplify right side
    1,368.88x = 912,015.82
  5. Step 5: Solve for x
    x = 912,015.82/1,368.88
  6. Step 6: Final answer
    x = 666.25

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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.