Home / 1,957.17-2,935.92-640.41

Finding the Fourth Proportional to 1,957.17, 2,935.92 and 640.41

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Solution

The fourth proportional to 1,957.17, 2,935.92 and 640.41 is: 960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.17 : 2,935.92 = 640.41 : x
  2. Step 2: Convert to fraction form
    1,957.17/2,935.92 = 640.41/x
  3. Step 3: Cross multiply
    1,957.17x = 2,935.92 × 640.41
  4. Step 4: Simplify right side
    1,957.17x = 1,880,192.53
  5. Step 5: Solve for x
    x = 1,880,192.53/1,957.17
  6. Step 6: Final answer
    x = 960.67

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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.