Home / 3,486.30-5,218.65-2,021.10

Finding the Fourth Proportional to 3,486.30, 5,218.65 and 2,021.10

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Solution

The fourth proportional to 3,486.30, 5,218.65 and 2,021.10 is: 3,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.30 : 5,218.65 = 2,021.10 : x
  2. Step 2: Convert to fraction form
    3,486.30/5,218.65 = 2,021.10/x
  3. Step 3: Cross multiply
    3,486.30x = 5,218.65 × 2,021.10
  4. Step 4: Simplify right side
    3,486.30x = 10,547,413.52
  5. Step 5: Solve for x
    x = 10,547,413.52/3,486.30
  6. Step 6: Final answer
    x = 3,025.39

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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.