Home / 2,313.56-3,485.95-1,911.68

Finding the Fourth Proportional to 2,313.56, 3,485.95 and 1,911.68

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Solution

The fourth proportional to 2,313.56, 3,485.95 and 1,911.68 is: 2,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.56 : 3,485.95 = 1,911.68 : x
  2. Step 2: Convert to fraction form
    2,313.56/3,485.95 = 1,911.68/x
  3. Step 3: Cross multiply
    2,313.56x = 3,485.95 × 1,911.68
  4. Step 4: Simplify right side
    2,313.56x = 6,664,020.90
  5. Step 5: Solve for x
    x = 6,664,020.90/2,313.56
  6. Step 6: Final answer
    x = 2,880.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.