Home / 5,423.90-8,135.70-1,726.35

Finding the Fourth Proportional to 5,423.90, 8,135.70 and 1,726.35

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Solution

The fourth proportional to 5,423.90, 8,135.70 and 1,726.35 is: 2,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.90 : 8,135.70 = 1,726.35 : x
  2. Step 2: Convert to fraction form
    5,423.90/8,135.70 = 1,726.35/x
  3. Step 3: Cross multiply
    5,423.90x = 8,135.70 × 1,726.35
  4. Step 4: Simplify right side
    5,423.90x = 14,045,065.70
  5. Step 5: Solve for x
    x = 14,045,065.70/5,423.90
  6. Step 6: Final answer
    x = 2,589.48

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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.