Home / 5,199.54-7,799.76-1,688.16

Finding the Fourth Proportional to 5,199.54, 7,799.76 and 1,688.16

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Solution

The fourth proportional to 5,199.54, 7,799.76 and 1,688.16 is: 2,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.54 : 7,799.76 = 1,688.16 : x
  2. Step 2: Convert to fraction form
    5,199.54/7,799.76 = 1,688.16/x
  3. Step 3: Cross multiply
    5,199.54x = 7,799.76 × 1,688.16
  4. Step 4: Simplify right side
    5,199.54x = 13,167,242.84
  5. Step 5: Solve for x
    x = 13,167,242.84/5,199.54
  6. Step 6: Final answer
    x = 2,532.39

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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.