Home / 4,626.81-6,390.45-3,132.12

Finding the Fourth Proportional to 4,626.81, 6,390.45 and 3,132.12

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Solution

The fourth proportional to 4,626.81, 6,390.45 and 3,132.12 is: 4,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,626.81 : 6,390.45 = 3,132.12 : x
  2. Step 2: Convert to fraction form
    4,626.81/6,390.45 = 3,132.12/x
  3. Step 3: Cross multiply
    4,626.81x = 6,390.45 × 3,132.12
  4. Step 4: Simplify right side
    4,626.81x = 20,015,656.25
  5. Step 5: Solve for x
    x = 20,015,656.25/4,626.81
  6. Step 6: Final answer
    x = 4,326.02

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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.