Home / 6,419.95-8,859.53-3,625.45

Finding the Fourth Proportional to 6,419.95, 8,859.53 and 3,625.45

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Solution

The fourth proportional to 6,419.95, 8,859.53 and 3,625.45 is: 5,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.95 : 8,859.53 = 3,625.45 : x
  2. Step 2: Convert to fraction form
    6,419.95/8,859.53 = 3,625.45/x
  3. Step 3: Cross multiply
    6,419.95x = 8,859.53 × 3,625.45
  4. Step 4: Simplify right side
    6,419.95x = 32,119,769.95
  5. Step 5: Solve for x
    x = 32,119,769.95/6,419.95
  6. Step 6: Final answer
    x = 5,003.12

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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.