Home / 2,890.30-4,334.42-1,040.91

Finding the Fourth Proportional to 2,890.30, 4,334.42 and 1,040.91

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Solution

The fourth proportional to 2,890.30, 4,334.42 and 1,040.91 is: 1,561.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.30 : 4,334.42 = 1,040.91 : x
  2. Step 2: Convert to fraction form
    2,890.30/4,334.42 = 1,040.91/x
  3. Step 3: Cross multiply
    2,890.30x = 4,334.42 × 1,040.91
  4. Step 4: Simplify right side
    2,890.30x = 4,511,749.36
  5. Step 5: Solve for x
    x = 4,511,749.36/2,890.30
  6. Step 6: Final answer
    x = 1,561.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.