Home / 5,097.80-7,646.70-1,635.40

Finding the Fourth Proportional to 5,097.80, 7,646.70 and 1,635.40

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Solution

The fourth proportional to 5,097.80, 7,646.70 and 1,635.40 is: 2,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.80 : 7,646.70 = 1,635.40 : x
  2. Step 2: Convert to fraction form
    5,097.80/7,646.70 = 1,635.40/x
  3. Step 3: Cross multiply
    5,097.80x = 7,646.70 × 1,635.40
  4. Step 4: Simplify right side
    5,097.80x = 12,505,413.18
  5. Step 5: Solve for x
    x = 12,505,413.18/5,097.80
  6. Step 6: Final answer
    x = 2,453.10

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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.