Home / 2,318.49-3,200.72-1,435.05

Finding the Fourth Proportional to 2,318.49, 3,200.72 and 1,435.05

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Solution

The fourth proportional to 2,318.49, 3,200.72 and 1,435.05 is: 1,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.49 : 3,200.72 = 1,435.05 : x
  2. Step 2: Convert to fraction form
    2,318.49/3,200.72 = 1,435.05/x
  3. Step 3: Cross multiply
    2,318.49x = 3,200.72 × 1,435.05
  4. Step 4: Simplify right side
    2,318.49x = 4,593,186.06
  5. Step 5: Solve for x
    x = 4,593,186.06/2,318.49
  6. Step 6: Final answer
    x = 1,981.11

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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.