Home / 7,905.72-11,858.46-2,359.08

Finding the Fourth Proportional to 7,905.72, 11,858.46 and 2,359.08

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Solution

The fourth proportional to 7,905.72, 11,858.46 and 2,359.08 is: 3,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.72 : 11,858.46 = 2,359.08 : x
  2. Step 2: Convert to fraction form
    7,905.72/11,858.46 = 2,359.08/x
  3. Step 3: Cross multiply
    7,905.72x = 11,858.46 × 2,359.08
  4. Step 4: Simplify right side
    7,905.72x = 27,975,055.82
  5. Step 5: Solve for x
    x = 27,975,055.82/7,905.72
  6. Step 6: Final answer
    x = 3,538.58

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1.5x scale

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.