Home / 2,357.77-3,538.14-1,318.45

Finding the Fourth Proportional to 2,357.77, 3,538.14 and 1,318.45

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Solution

The fourth proportional to 2,357.77, 3,538.14 and 1,318.45 is: 1,978.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,357.77 : 3,538.14 = 1,318.45 : x
  2. Step 2: Convert to fraction form
    2,357.77/3,538.14 = 1,318.45/x
  3. Step 3: Cross multiply
    2,357.77x = 3,538.14 × 1,318.45
  4. Step 4: Simplify right side
    2,357.77x = 4,664,846.89
  5. Step 5: Solve for x
    x = 4,664,846.89/2,357.77
  6. Step 6: Final answer
    x = 1,978.50

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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.