Home / 5,813.45-8,720.57-1,653.78

Finding the Fourth Proportional to 5,813.45, 8,720.57 and 1,653.78

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Solution

The fourth proportional to 5,813.45, 8,720.57 and 1,653.78 is: 2,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.45 : 8,720.57 = 1,653.78 : x
  2. Step 2: Convert to fraction form
    5,813.45/8,720.57 = 1,653.78/x
  3. Step 3: Cross multiply
    5,813.45x = 8,720.57 × 1,653.78
  4. Step 4: Simplify right side
    5,813.45x = 14,421,895.99
  5. Step 5: Solve for x
    x = 14,421,895.99/5,813.45
  6. Step 6: Final answer
    x = 2,480.78

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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.