Home / 5,726.23-8,586.87-1,978.41

Finding the Fourth Proportional to 5,726.23, 8,586.87 and 1,978.41

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Solution

The fourth proportional to 5,726.23, 8,586.87 and 1,978.41 is: 2,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.23 : 8,586.87 = 1,978.41 : x
  2. Step 2: Convert to fraction form
    5,726.23/8,586.87 = 1,978.41/x
  3. Step 3: Cross multiply
    5,726.23x = 8,586.87 × 1,978.41
  4. Step 4: Simplify right side
    5,726.23x = 16,988,349.48
  5. Step 5: Solve for x
    x = 16,988,349.48/5,726.23
  6. Step 6: Final answer
    x = 2,966.76

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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.