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Finding the Fourth Proportional to 3,888.03, 5,831.10 and 1,114.05

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Solution

The fourth proportional to 3,888.03, 5,831.10 and 1,114.05 is: 1,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.03 : 5,831.10 = 1,114.05 : x
  2. Step 2: Convert to fraction form
    3,888.03/5,831.10 = 1,114.05/x
  3. Step 3: Cross multiply
    3,888.03x = 5,831.10 × 1,114.05
  4. Step 4: Simplify right side
    3,888.03x = 6,496,136.96
  5. Step 5: Solve for x
    x = 6,496,136.96/3,888.03
  6. Step 6: Final answer
    x = 1,670.80

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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.