Home / 1,957.02-2,935.61-640.84

Finding the Fourth Proportional to 1,957.02, 2,935.61 and 640.84

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Solution

The fourth proportional to 1,957.02, 2,935.61 and 640.84 is: 961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.02 : 2,935.61 = 640.84 : x
  2. Step 2: Convert to fraction form
    1,957.02/2,935.61 = 640.84/x
  3. Step 3: Cross multiply
    1,957.02x = 2,935.61 × 640.84
  4. Step 4: Simplify right side
    1,957.02x = 1,881,256.31
  5. Step 5: Solve for x
    x = 1,881,256.31/1,957.02
  6. Step 6: Final answer
    x = 961.29

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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.