Home / 6,430.24-8,860.89-5,422.02

Finding the Fourth Proportional to 6,430.24, 8,860.89 and 5,422.02

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Solution

The fourth proportional to 6,430.24, 8,860.89 and 5,422.02 is: 7,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.24 : 8,860.89 = 5,422.02 : x
  2. Step 2: Convert to fraction form
    6,430.24/8,860.89 = 5,422.02/x
  3. Step 3: Cross multiply
    6,430.24x = 8,860.89 × 5,422.02
  4. Step 4: Simplify right side
    6,430.24x = 48,043,922.80
  5. Step 5: Solve for x
    x = 48,043,922.80/6,430.24
  6. Step 6: Final answer
    x = 7,471.56

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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.