Home / 3,309.16-4,964.20-1,117.40

Finding the Fourth Proportional to 3,309.16, 4,964.20 and 1,117.40

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Solution

The fourth proportional to 3,309.16, 4,964.20 and 1,117.40 is: 1,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.16 : 4,964.20 = 1,117.40 : x
  2. Step 2: Convert to fraction form
    3,309.16/4,964.20 = 1,117.40/x
  3. Step 3: Cross multiply
    3,309.16x = 4,964.20 × 1,117.40
  4. Step 4: Simplify right side
    3,309.16x = 5,546,997.08
  5. Step 5: Solve for x
    x = 5,546,997.08/3,309.16
  6. Step 6: Final answer
    x = 1,676.26

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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.