Home / 2,970.27-4,098.65-1,643.81

Finding the Fourth Proportional to 2,970.27, 4,098.65 and 1,643.81

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Solution

The fourth proportional to 2,970.27, 4,098.65 and 1,643.81 is: 2,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.27 : 4,098.65 = 1,643.81 : x
  2. Step 2: Convert to fraction form
    2,970.27/4,098.65 = 1,643.81/x
  3. Step 3: Cross multiply
    2,970.27x = 4,098.65 × 1,643.81
  4. Step 4: Simplify right side
    2,970.27x = 6,737,373.14
  5. Step 5: Solve for x
    x = 6,737,373.14/2,970.27
  6. Step 6: Final answer
    x = 2,268.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.