Home / 4,278.42-6,416.08-1,813.40

Finding the Fourth Proportional to 4,278.42, 6,416.08 and 1,813.40

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Solution

The fourth proportional to 4,278.42, 6,416.08 and 1,813.40 is: 2,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.42 : 6,416.08 = 1,813.40 : x
  2. Step 2: Convert to fraction form
    4,278.42/6,416.08 = 1,813.40/x
  3. Step 3: Cross multiply
    4,278.42x = 6,416.08 × 1,813.40
  4. Step 4: Simplify right side
    4,278.42x = 11,634,919.47
  5. Step 5: Solve for x
    x = 11,634,919.47/4,278.42
  6. Step 6: Final answer
    x = 2,719.44

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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.