Home / 2,945.67-4,064.94-1,898.34

Finding the Fourth Proportional to 2,945.67, 4,064.94 and 1,898.34

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Solution

The fourth proportional to 2,945.67, 4,064.94 and 1,898.34 is: 2,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.67 : 4,064.94 = 1,898.34 : x
  2. Step 2: Convert to fraction form
    2,945.67/4,064.94 = 1,898.34/x
  3. Step 3: Cross multiply
    2,945.67x = 4,064.94 × 1,898.34
  4. Step 4: Simplify right side
    2,945.67x = 7,716,638.20
  5. Step 5: Solve for x
    x = 7,716,638.20/2,945.67
  6. Step 6: Final answer
    x = 2,619.65

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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.