Home / 5,513.66-8,271.86-1,618.07

Finding the Fourth Proportional to 5,513.66, 8,271.86 and 1,618.07

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Solution

The fourth proportional to 5,513.66, 8,271.86 and 1,618.07 is: 2,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.66 : 8,271.86 = 1,618.07 : x
  2. Step 2: Convert to fraction form
    5,513.66/8,271.86 = 1,618.07/x
  3. Step 3: Cross multiply
    5,513.66x = 8,271.86 × 1,618.07
  4. Step 4: Simplify right side
    5,513.66x = 13,384,435.98
  5. Step 5: Solve for x
    x = 13,384,435.98/5,513.66
  6. Step 6: Final answer
    x = 2,427.50

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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.