Home / 6,419.45-8,860.79-4,062.35

Finding the Fourth Proportional to 6,419.45, 8,860.79 and 4,062.35

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Solution

The fourth proportional to 6,419.45, 8,860.79 and 4,062.35 is: 5,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.45 : 8,860.79 = 4,062.35 : x
  2. Step 2: Convert to fraction form
    6,419.45/8,860.79 = 4,062.35/x
  3. Step 3: Cross multiply
    6,419.45x = 8,860.79 × 4,062.35
  4. Step 4: Simplify right side
    6,419.45x = 35,995,630.26
  5. Step 5: Solve for x
    x = 35,995,630.26/6,419.45
  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.