Home / 3,015.18-4,154.40-2,811.93

Finding the Fourth Proportional to 3,015.18, 4,154.40 and 2,811.93

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Solution

The fourth proportional to 3,015.18, 4,154.40 and 2,811.93 is: 3,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.18 : 4,154.40 = 2,811.93 : x
  2. Step 2: Convert to fraction form
    3,015.18/4,154.40 = 2,811.93/x
  3. Step 3: Cross multiply
    3,015.18x = 4,154.40 × 2,811.93
  4. Step 4: Simplify right side
    3,015.18x = 11,681,881.99
  5. Step 5: Solve for x
    x = 11,681,881.99/3,015.18
  6. Step 6: Final answer
    x = 3,874.36

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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.