Home / 6,899.40-9,520.50-3,873.83

Finding the Fourth Proportional to 6,899.40, 9,520.50 and 3,873.83

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Solution

The fourth proportional to 6,899.40, 9,520.50 and 3,873.83 is: 5,345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.40 : 9,520.50 = 3,873.83 : x
  2. Step 2: Convert to fraction form
    6,899.40/9,520.50 = 3,873.83/x
  3. Step 3: Cross multiply
    6,899.40x = 9,520.50 × 3,873.83
  4. Step 4: Simplify right side
    6,899.40x = 36,880,750.91
  5. Step 5: Solve for x
    x = 36,880,750.91/6,899.40
  6. Step 6: Final answer
    x = 5,345.50

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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.