Home / 6,419.46-8,860.78-4,062.36

Finding the Fourth Proportional to 6,419.46, 8,860.78 and 4,062.36

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Solution

The fourth proportional to 6,419.46, 8,860.78 and 4,062.36 is: 5,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.46 : 8,860.78 = 4,062.36 : x
  2. Step 2: Convert to fraction form
    6,419.46/8,860.78 = 4,062.36/x
  3. Step 3: Cross multiply
    6,419.46x = 8,860.78 × 4,062.36
  4. Step 4: Simplify right side
    6,419.46x = 35,995,678.24
  5. Step 5: Solve for x
    x = 35,995,678.24/6,419.46
  6. Step 6: Final answer
    x = 5,607.28

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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.