Home / 5,619.07-8,428.59-1,515.07

Finding the Fourth Proportional to 5,619.07, 8,428.59 and 1,515.07

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Solution

The fourth proportional to 5,619.07, 8,428.59 and 1,515.07 is: 2,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.07 : 8,428.59 = 1,515.07 : x
  2. Step 2: Convert to fraction form
    5,619.07/8,428.59 = 1,515.07/x
  3. Step 3: Cross multiply
    5,619.07x = 8,428.59 × 1,515.07
  4. Step 4: Simplify right side
    5,619.07x = 12,769,903.85
  5. Step 5: Solve for x
    x = 12,769,903.85/5,619.07
  6. Step 6: Final answer
    x = 2,272.60

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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.