Home / 6,429.09-8,875.05-3,776.67

Finding the Fourth Proportional to 6,429.09, 8,875.05 and 3,776.67

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Solution

The fourth proportional to 6,429.09, 8,875.05 and 3,776.67 is: 5,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.09 : 8,875.05 = 3,776.67 : x
  2. Step 2: Convert to fraction form
    6,429.09/8,875.05 = 3,776.67/x
  3. Step 3: Cross multiply
    6,429.09x = 8,875.05 × 3,776.67
  4. Step 4: Simplify right side
    6,429.09x = 33,518,135.08
  5. Step 5: Solve for x
    x = 33,518,135.08/6,429.09
  6. Step 6: Final answer
    x = 5,213.51

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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.