Home / 4,874.90-7,311.78-1,412.18

Finding the Fourth Proportional to 4,874.90, 7,311.78 and 1,412.18

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Solution

The fourth proportional to 4,874.90, 7,311.78 and 1,412.18 is: 2,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.90 : 7,311.78 = 1,412.18 : x
  2. Step 2: Convert to fraction form
    4,874.90/7,311.78 = 1,412.18/x
  3. Step 3: Cross multiply
    4,874.90x = 7,311.78 × 1,412.18
  4. Step 4: Simplify right side
    4,874.90x = 10,325,549.48
  5. Step 5: Solve for x
    x = 10,325,549.48/4,874.90
  6. Step 6: Final answer
    x = 2,118.10

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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.