Home / 2,318.34-3,477.78-1,085.64

Finding the Fourth Proportional to 2,318.34, 3,477.78 and 1,085.64

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Solution

The fourth proportional to 2,318.34, 3,477.78 and 1,085.64 is: 1,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.34 : 3,477.78 = 1,085.64 : x
  2. Step 2: Convert to fraction form
    2,318.34/3,477.78 = 1,085.64/x
  3. Step 3: Cross multiply
    2,318.34x = 3,477.78 × 1,085.64
  4. Step 4: Simplify right side
    2,318.34x = 3,775,617.08
  5. Step 5: Solve for x
    x = 3,775,617.08/2,318.34
  6. Step 6: Final answer
    x = 1,628.59

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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.