Home / 1,957.43-2,936.63-570.78

Finding the Fourth Proportional to 1,957.43, 2,936.63 and 570.78

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Solution

The fourth proportional to 1,957.43, 2,936.63 and 570.78 is: 856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.43 : 2,936.63 = 570.78 : x
  2. Step 2: Convert to fraction form
    1,957.43/2,936.63 = 570.78/x
  3. Step 3: Cross multiply
    1,957.43x = 2,936.63 × 570.78
  4. Step 4: Simplify right side
    1,957.43x = 1,676,169.67
  5. Step 5: Solve for x
    x = 1,676,169.67/1,957.43
  6. Step 6: Final answer
    x = 856.31

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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.