Home / 4,378.88-6,570.12-3,455.48

Finding the Fourth Proportional to 4,378.88, 6,570.12 and 3,455.48

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Solution

The fourth proportional to 4,378.88, 6,570.12 and 3,455.48 is: 5,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.88 : 6,570.12 = 3,455.48 : x
  2. Step 2: Convert to fraction form
    4,378.88/6,570.12 = 3,455.48/x
  3. Step 3: Cross multiply
    4,378.88x = 6,570.12 × 3,455.48
  4. Step 4: Simplify right side
    4,378.88x = 22,702,918.26
  5. Step 5: Solve for x
    x = 22,702,918.26/4,378.88
  6. Step 6: Final answer
    x = 5,184.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.