Home / 1,837.20-2,747.80-1,643.60

Finding the Fourth Proportional to 1,837.20, 2,747.80 and 1,643.60

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Solution

The fourth proportional to 1,837.20, 2,747.80 and 1,643.60 is: 2,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837.20 : 2,747.80 = 1,643.60 : x
  2. Step 2: Convert to fraction form
    1,837.20/2,747.80 = 1,643.60/x
  3. Step 3: Cross multiply
    1,837.20x = 2,747.80 × 1,643.60
  4. Step 4: Simplify right side
    1,837.20x = 4,516,284.08
  5. Step 5: Solve for x
    x = 4,516,284.08/1,837.20
  6. Step 6: Final answer
    x = 2,458.24

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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.