Home / 3,290.12-4,935.46-1,316.32

Finding the Fourth Proportional to 3,290.12, 4,935.46 and 1,316.32

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Solution

The fourth proportional to 3,290.12, 4,935.46 and 1,316.32 is: 1,974.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.12 : 4,935.46 = 1,316.32 : x
  2. Step 2: Convert to fraction form
    3,290.12/4,935.46 = 1,316.32/x
  3. Step 3: Cross multiply
    3,290.12x = 4,935.46 × 1,316.32
  4. Step 4: Simplify right side
    3,290.12x = 6,496,644.71
  5. Step 5: Solve for x
    x = 6,496,644.71/3,290.12
  6. Step 6: Final answer
    x = 1,974.59

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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.