Home / 5,485.15-7,563.65-4,421.80

Finding the Fourth Proportional to 5,485.15, 7,563.65 and 4,421.80

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Solution

The fourth proportional to 5,485.15, 7,563.65 and 4,421.80 is: 6,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.15 : 7,563.65 = 4,421.80 : x
  2. Step 2: Convert to fraction form
    5,485.15/7,563.65 = 4,421.80/x
  3. Step 3: Cross multiply
    5,485.15x = 7,563.65 × 4,421.80
  4. Step 4: Simplify right side
    5,485.15x = 33,444,947.57
  5. Step 5: Solve for x
    x = 33,444,947.57/5,485.15
  6. Step 6: Final answer
    x = 6,097.36

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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.