Home / 3,260.40-4,890.11-1,069.13

Finding the Fourth Proportional to 3,260.40, 4,890.11 and 1,069.13

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Solution

The fourth proportional to 3,260.40, 4,890.11 and 1,069.13 is: 1,603.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.40 : 4,890.11 = 1,069.13 : x
  2. Step 2: Convert to fraction form
    3,260.40/4,890.11 = 1,069.13/x
  3. Step 3: Cross multiply
    3,260.40x = 4,890.11 × 1,069.13
  4. Step 4: Simplify right side
    3,260.40x = 5,228,133.51
  5. Step 5: Solve for x
    x = 5,228,133.51/3,260.40
  6. Step 6: Final answer
    x = 1,603.53

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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.