Home / 2,970.42-4,098.74-1,644.11

Finding the Fourth Proportional to 2,970.42, 4,098.74 and 1,644.11

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Solution

The fourth proportional to 2,970.42, 4,098.74 and 1,644.11 is: 2,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.42 : 4,098.74 = 1,644.11 : x
  2. Step 2: Convert to fraction form
    2,970.42/4,098.74 = 1,644.11/x
  3. Step 3: Cross multiply
    2,970.42x = 4,098.74 × 1,644.11
  4. Step 4: Simplify right side
    2,970.42x = 6,738,798.38
  5. Step 5: Solve for x
    x = 6,738,798.38/2,970.42
  6. Step 6: Final answer
    x = 2,268.64

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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.