Home / 2,970.79-4,099.51-1,644.41

Finding the Fourth Proportional to 2,970.79, 4,099.51 and 1,644.41

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Solution

The fourth proportional to 2,970.79, 4,099.51 and 1,644.41 is: 2,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.79 : 4,099.51 = 1,644.41 : x
  2. Step 2: Convert to fraction form
    2,970.79/4,099.51 = 1,644.41/x
  3. Step 3: Cross multiply
    2,970.79x = 4,099.51 × 1,644.41
  4. Step 4: Simplify right side
    2,970.79x = 6,741,275.24
  5. Step 5: Solve for x
    x = 6,741,275.24/2,970.79
  6. Step 6: Final answer
    x = 2,269.19

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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.