Home / 1,869.59-2,804.48-1,431.47

Finding the Fourth Proportional to 1,869.59, 2,804.48 and 1,431.47

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Solution

The fourth proportional to 1,869.59, 2,804.48 and 1,431.47 is: 2,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.59 : 2,804.48 = 1,431.47 : x
  2. Step 2: Convert to fraction form
    1,869.59/2,804.48 = 1,431.47/x
  3. Step 3: Cross multiply
    1,869.59x = 2,804.48 × 1,431.47
  4. Step 4: Simplify right side
    1,869.59x = 4,014,507.81
  5. Step 5: Solve for x
    x = 4,014,507.81/1,869.59
  6. Step 6: Final answer
    x = 2,147.27

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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.