Home / 6,419.12-8,858.40-4,326.08

Finding the Fourth Proportional to 6,419.12, 8,858.40 and 4,326.08

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Solution

The fourth proportional to 6,419.12, 8,858.40 and 4,326.08 is: 5,970.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.12 : 8,858.40 = 4,326.08 : x
  2. Step 2: Convert to fraction form
    6,419.12/8,858.40 = 4,326.08/x
  3. Step 3: Cross multiply
    6,419.12x = 8,858.40 × 4,326.08
  4. Step 4: Simplify right side
    6,419.12x = 38,322,147.07
  5. Step 5: Solve for x
    x = 38,322,147.07/6,419.12
  6. Step 6: Final answer
    x = 5,970.00

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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.