Home / 6,289.99-8,681.79-3,637.06

Finding the Fourth Proportional to 6,289.99, 8,681.79 and 3,637.06

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Solution

The fourth proportional to 6,289.99, 8,681.79 and 3,637.06 is: 5,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.99 : 8,681.79 = 3,637.06 : x
  2. Step 2: Convert to fraction form
    6,289.99/8,681.79 = 3,637.06/x
  3. Step 3: Cross multiply
    6,289.99x = 8,681.79 × 3,637.06
  4. Step 4: Simplify right side
    6,289.99x = 31,576,191.14
  5. Step 5: Solve for x
    x = 31,576,191.14/6,289.99
  6. Step 6: Final answer
    x = 5,020.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.