Home / 5,780.15-8,675.39-3,316.74

Finding the Fourth Proportional to 5,780.15, 8,675.39 and 3,316.74

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Solution

The fourth proportional to 5,780.15, 8,675.39 and 3,316.74 is: 4,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.15 : 8,675.39 = 3,316.74 : x
  2. Step 2: Convert to fraction form
    5,780.15/8,675.39 = 3,316.74/x
  3. Step 3: Cross multiply
    5,780.15x = 8,675.39 × 3,316.74
  4. Step 4: Simplify right side
    5,780.15x = 28,774,013.03
  5. Step 5: Solve for x
    x = 28,774,013.03/5,780.15
  6. Step 6: Final answer
    x = 4,978.07

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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.