Home / 9,315.87-13,973.79-2,390.37

Finding the Fourth Proportional to 9,315.87, 13,973.79 and 2,390.37

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Solution

The fourth proportional to 9,315.87, 13,973.79 and 2,390.37 is: 3,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.87 : 13,973.79 = 2,390.37 : x
  2. Step 2: Convert to fraction form
    9,315.87/13,973.79 = 2,390.37/x
  3. Step 3: Cross multiply
    9,315.87x = 13,973.79 × 2,390.37
  4. Step 4: Simplify right side
    9,315.87x = 33,402,528.40
  5. Step 5: Solve for x
    x = 33,402,528.40/9,315.87
  6. Step 6: Final answer
    x = 3,585.55

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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.