Home / 5,853.06-8,780.40-2,389.50

Finding the Fourth Proportional to 5,853.06, 8,780.40 and 2,389.50

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Solution

The fourth proportional to 5,853.06, 8,780.40 and 2,389.50 is: 3,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,853.06 : 8,780.40 = 2,389.50 : x
  2. Step 2: Convert to fraction form
    5,853.06/8,780.40 = 2,389.50/x
  3. Step 3: Cross multiply
    5,853.06x = 8,780.40 × 2,389.50
  4. Step 4: Simplify right side
    5,853.06x = 20,980,765.80
  5. Step 5: Solve for x
    x = 20,980,765.80/5,853.06
  6. Step 6: Final answer
    x = 3,584.58

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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.