Home / 5,362.40-8,043.60-1,899.20

Finding the Fourth Proportional to 5,362.40, 8,043.60 and 1,899.20

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Solution

The fourth proportional to 5,362.40, 8,043.60 and 1,899.20 is: 2,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.40 : 8,043.60 = 1,899.20 : x
  2. Step 2: Convert to fraction form
    5,362.40/8,043.60 = 1,899.20/x
  3. Step 3: Cross multiply
    5,362.40x = 8,043.60 × 1,899.20
  4. Step 4: Simplify right side
    5,362.40x = 15,276,405.12
  5. Step 5: Solve for x
    x = 15,276,405.12/5,362.40
  6. Step 6: Final answer
    x = 2,848.80

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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.