Home / 2,313.93-3,193.22-1,319.20

Finding the Fourth Proportional to 2,313.93, 3,193.22 and 1,319.20

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Solution

The fourth proportional to 2,313.93, 3,193.22 and 1,319.20 is: 1,820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.93 : 3,193.22 = 1,319.20 : x
  2. Step 2: Convert to fraction form
    2,313.93/3,193.22 = 1,319.20/x
  3. Step 3: Cross multiply
    2,313.93x = 3,193.22 × 1,319.20
  4. Step 4: Simplify right side
    2,313.93x = 4,212,509.10
  5. Step 5: Solve for x
    x = 4,212,509.10/2,313.93
  6. Step 6: Final answer
    x = 1,820.50

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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.