Home / 1,957.08-2,935.51-640.66

Finding the Fourth Proportional to 1,957.08, 2,935.51 and 640.66

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Solution

The fourth proportional to 1,957.08, 2,935.51 and 640.66 is: 960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.08 : 2,935.51 = 640.66 : x
  2. Step 2: Convert to fraction form
    1,957.08/2,935.51 = 640.66/x
  3. Step 3: Cross multiply
    1,957.08x = 2,935.51 × 640.66
  4. Step 4: Simplify right side
    1,957.08x = 1,880,666.81
  5. Step 5: Solve for x
    x = 1,880,666.81/1,957.08
  6. Step 6: Final answer
    x = 960.96

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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.