Home / 5,071.36-7,606.80-1,784.20

Finding the Fourth Proportional to 5,071.36, 7,606.80 and 1,784.20

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Solution

The fourth proportional to 5,071.36, 7,606.80 and 1,784.20 is: 2,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071.36 : 7,606.80 = 1,784.20 : x
  2. Step 2: Convert to fraction form
    5,071.36/7,606.80 = 1,784.20/x
  3. Step 3: Cross multiply
    5,071.36x = 7,606.80 × 1,784.20
  4. Step 4: Simplify right side
    5,071.36x = 13,572,052.56
  5. Step 5: Solve for x
    x = 13,572,052.56/5,071.36
  6. Step 6: Final answer
    x = 2,676.22

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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.