Home / 2,143.83-3,210.19-1,957.93

Finding the Fourth Proportional to 2,143.83, 3,210.19 and 1,957.93

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Solution

The fourth proportional to 2,143.83, 3,210.19 and 1,957.93 is: 2,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.83 : 3,210.19 = 1,957.93 : x
  2. Step 2: Convert to fraction form
    2,143.83/3,210.19 = 1,957.93/x
  3. Step 3: Cross multiply
    2,143.83x = 3,210.19 × 1,957.93
  4. Step 4: Simplify right side
    2,143.83x = 6,285,327.31
  5. Step 5: Solve for x
    x = 6,285,327.31/2,143.83
  6. Step 6: Final answer
    x = 2,931.82

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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.