Home / 2,356.35-3,245.63-2,181.18

Finding the Fourth Proportional to 2,356.35, 3,245.63 and 2,181.18

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Solution

The fourth proportional to 2,356.35, 3,245.63 and 2,181.18 is: 3,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.35 : 3,245.63 = 2,181.18 : x
  2. Step 2: Convert to fraction form
    2,356.35/3,245.63 = 2,181.18/x
  3. Step 3: Cross multiply
    2,356.35x = 3,245.63 × 2,181.18
  4. Step 4: Simplify right side
    2,356.35x = 7,079,303.24
  5. Step 5: Solve for x
    x = 7,079,303.24/2,356.35
  6. Step 6: Final answer
    x = 3,004.35

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.