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Finding the Fourth Proportional to 1,341.98, 1,852.11 and 752.64

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Solution

The fourth proportional to 1,341.98, 1,852.11 and 752.64 is: 1,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.98 : 1,852.11 = 752.64 : x
  2. Step 2: Convert to fraction form
    1,341.98/1,852.11 = 752.64/x
  3. Step 3: Cross multiply
    1,341.98x = 1,852.11 × 752.64
  4. Step 4: Simplify right side
    1,341.98x = 1,393,972.07
  5. Step 5: Solve for x
    x = 1,393,972.07/1,341.98
  6. Step 6: Final answer
    x = 1,038.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.