Home / 2,970.64-4,099.38-1,644.28

Finding the Fourth Proportional to 2,970.64, 4,099.38 and 1,644.28

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Solution

The fourth proportional to 2,970.64, 4,099.38 and 1,644.28 is: 2,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.64 : 4,099.38 = 1,644.28 : x
  2. Step 2: Convert to fraction form
    2,970.64/4,099.38 = 1,644.28/x
  3. Step 3: Cross multiply
    2,970.64x = 4,099.38 × 1,644.28
  4. Step 4: Simplify right side
    2,970.64x = 6,740,528.55
  5. Step 5: Solve for x
    x = 6,740,528.55/2,970.64
  6. Step 6: Final answer
    x = 2,269.05

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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.