Home / 4,209.79-6,313.10-1,398.10

Finding the Fourth Proportional to 4,209.79, 6,313.10 and 1,398.10

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Solution

The fourth proportional to 4,209.79, 6,313.10 and 1,398.10 is: 2,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.79 : 6,313.10 = 1,398.10 : x
  2. Step 2: Convert to fraction form
    4,209.79/6,313.10 = 1,398.10/x
  3. Step 3: Cross multiply
    4,209.79x = 6,313.10 × 1,398.10
  4. Step 4: Simplify right side
    4,209.79x = 8,826,345.11
  5. Step 5: Solve for x
    x = 8,826,345.11/4,209.79
  6. Step 6: Final answer
    x = 2,096.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.