Home / 2,318.63-3,199.70-1,270.76

Finding the Fourth Proportional to 2,318.63, 3,199.70 and 1,270.76

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Solution

The fourth proportional to 2,318.63, 3,199.70 and 1,270.76 is: 1,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.63 : 3,199.70 = 1,270.76 : x
  2. Step 2: Convert to fraction form
    2,318.63/3,199.70 = 1,270.76/x
  3. Step 3: Cross multiply
    2,318.63x = 3,199.70 × 1,270.76
  4. Step 4: Simplify right side
    2,318.63x = 4,066,037.95
  5. Step 5: Solve for x
    x = 4,066,037.95/2,318.63
  6. Step 6: Final answer
    x = 1,753.64

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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.