Home / 6,420.54-8,860.35-3,626.04

Finding the Fourth Proportional to 6,420.54, 8,860.35 and 3,626.04

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Solution

The fourth proportional to 6,420.54, 8,860.35 and 3,626.04 is: 5,003.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.54 : 8,860.35 = 3,626.04 : x
  2. Step 2: Convert to fraction form
    6,420.54/8,860.35 = 3,626.04/x
  3. Step 3: Cross multiply
    6,420.54x = 8,860.35 × 3,626.04
  4. Step 4: Simplify right side
    6,420.54x = 32,127,983.51
  5. Step 5: Solve for x
    x = 32,127,983.51/6,420.54
  6. Step 6: Final answer
    x = 5,003.94

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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.