Home / 7,828.44-11,741.70-1,985.10

Finding the Fourth Proportional to 7,828.44, 11,741.70 and 1,985.10

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Solution

The fourth proportional to 7,828.44, 11,741.70 and 1,985.10 is: 2,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.44 : 11,741.70 = 1,985.10 : x
  2. Step 2: Convert to fraction form
    7,828.44/11,741.70 = 1,985.10/x
  3. Step 3: Cross multiply
    7,828.44x = 11,741.70 × 1,985.10
  4. Step 4: Simplify right side
    7,828.44x = 23,308,448.67
  5. Step 5: Solve for x
    x = 23,308,448.67/7,828.44
  6. Step 6: Final answer
    x = 2,977.41

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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.