Home / 5,160.42-7,740.54-1,697.70

Finding the Fourth Proportional to 5,160.42, 7,740.54 and 1,697.70

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Solution

The fourth proportional to 5,160.42, 7,740.54 and 1,697.70 is: 2,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.42 : 7,740.54 = 1,697.70 : x
  2. Step 2: Convert to fraction form
    5,160.42/7,740.54 = 1,697.70/x
  3. Step 3: Cross multiply
    5,160.42x = 7,740.54 × 1,697.70
  4. Step 4: Simplify right side
    5,160.42x = 13,141,114.76
  5. Step 5: Solve for x
    x = 13,141,114.76/5,160.42
  6. Step 6: Final answer
    x = 2,546.52

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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.