Home / 1,480.06-2,042.63-890.58

Finding the Fourth Proportional to 1,480.06, 2,042.63 and 890.58

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Solution

The fourth proportional to 1,480.06, 2,042.63 and 890.58 is: 1,229.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.06 : 2,042.63 = 890.58 : x
  2. Step 2: Convert to fraction form
    1,480.06/2,042.63 = 890.58/x
  3. Step 3: Cross multiply
    1,480.06x = 2,042.63 × 890.58
  4. Step 4: Simplify right side
    1,480.06x = 1,819,125.43
  5. Step 5: Solve for x
    x = 1,819,125.43/1,480.06
  6. Step 6: Final answer
    x = 1,229.09

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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.