Home / 2,970.31-4,098.85-1,644.22

Finding the Fourth Proportional to 2,970.31, 4,098.85 and 1,644.22

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Solution

The fourth proportional to 2,970.31, 4,098.85 and 1,644.22 is: 2,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.31 : 4,098.85 = 1,644.22 : x
  2. Step 2: Convert to fraction form
    2,970.31/4,098.85 = 1,644.22/x
  3. Step 3: Cross multiply
    2,970.31x = 4,098.85 × 1,644.22
  4. Step 4: Simplify right side
    2,970.31x = 6,739,411.15
  5. Step 5: Solve for x
    x = 6,739,411.15/2,970.31
  6. Step 6: Final answer
    x = 2,268.93

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1.5x scale

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.