Home / 5,681.07-8,515.26-4,289.90

Finding the Fourth Proportional to 5,681.07, 8,515.26 and 4,289.90

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Solution

The fourth proportional to 5,681.07, 8,515.26 and 4,289.90 is: 6,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.07 : 8,515.26 = 4,289.90 : x
  2. Step 2: Convert to fraction form
    5,681.07/8,515.26 = 4,289.90/x
  3. Step 3: Cross multiply
    5,681.07x = 8,515.26 × 4,289.90
  4. Step 4: Simplify right side
    5,681.07x = 36,529,571.30
  5. Step 5: Solve for x
    x = 36,529,571.30/5,681.07
  6. Step 6: Final answer
    x = 6,430.05

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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.