Home / 3,009.54-4,151.88-1,889.70

Finding the Fourth Proportional to 3,009.54, 4,151.88 and 1,889.70

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Solution

The fourth proportional to 3,009.54, 4,151.88 and 1,889.70 is: 2,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.54 : 4,151.88 = 1,889.70 : x
  2. Step 2: Convert to fraction form
    3,009.54/4,151.88 = 1,889.70/x
  3. Step 3: Cross multiply
    3,009.54x = 4,151.88 × 1,889.70
  4. Step 4: Simplify right side
    3,009.54x = 7,845,807.64
  5. Step 5: Solve for x
    x = 7,845,807.64/3,009.54
  6. Step 6: Final answer
    x = 2,606.98

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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.