Home / 5,490.35-7,570.80-4,427.00

Finding the Fourth Proportional to 5,490.35, 7,570.80 and 4,427.00

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Solution

The fourth proportional to 5,490.35, 7,570.80 and 4,427.00 is: 6,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.35 : 7,570.80 = 4,427.00 : x
  2. Step 2: Convert to fraction form
    5,490.35/7,570.80 = 4,427.00/x
  3. Step 3: Cross multiply
    5,490.35x = 7,570.80 × 4,427.00
  4. Step 4: Simplify right side
    5,490.35x = 33,515,893.75
  5. Step 5: Solve for x
    x = 33,515,893.75/5,490.35
  6. Step 6: Final answer
    x = 6,104.52

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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.