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Finding the Fourth Proportional to 1,482.58, 2,223.87 and 1,408.68

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Solution

The fourth proportional to 1,482.58, 2,223.87 and 1,408.68 is: 2,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.58 : 2,223.87 = 1,408.68 : x
  2. Step 2: Convert to fraction form
    1,482.58/2,223.87 = 1,408.68/x
  3. Step 3: Cross multiply
    1,482.58x = 2,223.87 × 1,408.68
  4. Step 4: Simplify right side
    1,482.58x = 3,132,703.03
  5. Step 5: Solve for x
    x = 3,132,703.03/1,482.58
  6. Step 6: Final answer
    x = 2,113.01

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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.