Home / 5,621.86-8,432.79-1,726.30

Finding the Fourth Proportional to 5,621.86, 8,432.79 and 1,726.30

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Solution

The fourth proportional to 5,621.86, 8,432.79 and 1,726.30 is: 2,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.86 : 8,432.79 = 1,726.30 : x
  2. Step 2: Convert to fraction form
    5,621.86/8,432.79 = 1,726.30/x
  3. Step 3: Cross multiply
    5,621.86x = 8,432.79 × 1,726.30
  4. Step 4: Simplify right side
    5,621.86x = 14,557,525.38
  5. Step 5: Solve for x
    x = 14,557,525.38/5,621.86
  6. Step 6: Final answer
    x = 2,589.45

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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.