Home / 1,638.55-2,261.91-1,041.58

Finding the Fourth Proportional to 1,638.55, 2,261.91 and 1,041.58

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Solution

The fourth proportional to 1,638.55, 2,261.91 and 1,041.58 is: 1,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.55 : 2,261.91 = 1,041.58 : x
  2. Step 2: Convert to fraction form
    1,638.55/2,261.91 = 1,041.58/x
  3. Step 3: Cross multiply
    1,638.55x = 2,261.91 × 1,041.58
  4. Step 4: Simplify right side
    1,638.55x = 2,355,960.22
  5. Step 5: Solve for x
    x = 2,355,960.22/1,638.55
  6. Step 6: Final answer
    x = 1,437.83

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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.