Home / 5,509.10-8,262.81-1,811.40

Finding the Fourth Proportional to 5,509.10, 8,262.81 and 1,811.40

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Solution

The fourth proportional to 5,509.10, 8,262.81 and 1,811.40 is: 2,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.10 : 8,262.81 = 1,811.40 : x
  2. Step 2: Convert to fraction form
    5,509.10/8,262.81 = 1,811.40/x
  3. Step 3: Cross multiply
    5,509.10x = 8,262.81 × 1,811.40
  4. Step 4: Simplify right side
    5,509.10x = 14,967,223.05
  5. Step 5: Solve for x
    x = 14,967,223.05/5,509.10
  6. Step 6: Final answer
    x = 2,716.82

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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.