Home / 5,160-7,741.35-1,697.25

Finding the Fourth Proportional to 5,160, 7,741.35 and 1,697.25

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Solution

The fourth proportional to 5,160, 7,741.35 and 1,697.25 is: 2,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160 : 7,741.35 = 1,697.25 : x
  2. Step 2: Convert to fraction form
    5,160/7,741.35 = 1,697.25/x
  3. Step 3: Cross multiply
    5,160x = 7,741.35 × 1,697.25
  4. Step 4: Simplify right side
    5,160x = 13,139,006.29
  5. Step 5: Solve for x
    x = 13,139,006.29/5,160
  6. Step 6: Final answer
    x = 2,546.32

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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.