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Finding the Fourth Proportional to 1,441.80, 2,160.88 and 701.59

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Solution

The fourth proportional to 1,441.80, 2,160.88 and 701.59 is: 1,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.80 : 2,160.88 = 701.59 : x
  2. Step 2: Convert to fraction form
    1,441.80/2,160.88 = 701.59/x
  3. Step 3: Cross multiply
    1,441.80x = 2,160.88 × 701.59
  4. Step 4: Simplify right side
    1,441.80x = 1,516,051.80
  5. Step 5: Solve for x
    x = 1,516,051.80/1,441.80
  6. Step 6: Final answer
    x = 1,051.50

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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.