Home / 2,030.90-3,045.27-961.21

Finding the Fourth Proportional to 2,030.90, 3,045.27 and 961.21

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Solution

The fourth proportional to 2,030.90, 3,045.27 and 961.21 is: 1,441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.90 : 3,045.27 = 961.21 : x
  2. Step 2: Convert to fraction form
    2,030.90/3,045.27 = 961.21/x
  3. Step 3: Cross multiply
    2,030.90x = 3,045.27 × 961.21
  4. Step 4: Simplify right side
    2,030.90x = 2,927,143.98
  5. Step 5: Solve for x
    x = 2,927,143.98/2,030.90
  6. Step 6: Final answer
    x = 1,441.30

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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.