Home / 1,490.18-2,230.94-1,058.18

Finding the Fourth Proportional to 1,490.18, 2,230.94 and 1,058.18

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Solution

The fourth proportional to 1,490.18, 2,230.94 and 1,058.18 is: 1,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.18 : 2,230.94 = 1,058.18 : x
  2. Step 2: Convert to fraction form
    1,490.18/2,230.94 = 1,058.18/x
  3. Step 3: Cross multiply
    1,490.18x = 2,230.94 × 1,058.18
  4. Step 4: Simplify right side
    1,490.18x = 2,360,736.09
  5. Step 5: Solve for x
    x = 2,360,736.09/1,490.18
  6. Step 6: Final answer
    x = 1,584.20

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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.