Home / 1,583.19-2,181.21-1,104.18

Finding the Fourth Proportional to 1,583.19, 2,181.21 and 1,104.18

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Solution

The fourth proportional to 1,583.19, 2,181.21 and 1,104.18 is: 1,521.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.19 : 2,181.21 = 1,104.18 : x
  2. Step 2: Convert to fraction form
    1,583.19/2,181.21 = 1,104.18/x
  3. Step 3: Cross multiply
    1,583.19x = 2,181.21 × 1,104.18
  4. Step 4: Simplify right side
    1,583.19x = 2,408,448.46
  5. Step 5: Solve for x
    x = 2,408,448.46/1,583.19
  6. Step 6: Final answer
    x = 1,521.26

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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.