Home / 4,701.32-6,486.36-3,129.68

Finding the Fourth Proportional to 4,701.32, 6,486.36 and 3,129.68

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Solution

The fourth proportional to 4,701.32, 6,486.36 and 3,129.68 is: 4,317.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,701.32 : 6,486.36 = 3,129.68 : x
  2. Step 2: Convert to fraction form
    4,701.32/6,486.36 = 3,129.68/x
  3. Step 3: Cross multiply
    4,701.32x = 6,486.36 × 3,129.68
  4. Step 4: Simplify right side
    4,701.32x = 20,300,231.16
  5. Step 5: Solve for x
    x = 20,300,231.16/4,701.32
  6. Step 6: Final answer
    x = 4,317.99

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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.