Home / 5,160.88-7,740.60-1,697.68

Finding the Fourth Proportional to 5,160.88, 7,740.60 and 1,697.68

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Solution

The fourth proportional to 5,160.88, 7,740.60 and 1,697.68 is: 2,546.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.88 : 7,740.60 = 1,697.68 : x
  2. Step 2: Convert to fraction form
    5,160.88/7,740.60 = 1,697.68/x
  3. Step 3: Cross multiply
    5,160.88x = 7,740.60 × 1,697.68
  4. Step 4: Simplify right side
    5,160.88x = 13,141,061.81
  5. Step 5: Solve for x
    x = 13,141,061.81/5,160.88
  6. Step 6: Final answer
    x = 2,546.28

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1.5x scale

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.