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Finding the Fourth Proportional to 1,347.95, 2,021.96 and 374.06

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Solution

The fourth proportional to 1,347.95, 2,021.96 and 374.06 is: 561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.95 : 2,021.96 = 374.06 : x
  2. Step 2: Convert to fraction form
    1,347.95/2,021.96 = 374.06/x
  3. Step 3: Cross multiply
    1,347.95x = 2,021.96 × 374.06
  4. Step 4: Simplify right side
    1,347.95x = 756,334.36
  5. Step 5: Solve for x
    x = 756,334.36/1,347.95
  6. Step 6: Final answer
    x = 561.10

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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.