Home / 5,979.45-8,930.91-5,415.74

Finding the Fourth Proportional to 5,979.45, 8,930.91 and 5,415.74

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Solution

The fourth proportional to 5,979.45, 8,930.91 and 5,415.74 is: 8,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.45 : 8,930.91 = 5,415.74 : x
  2. Step 2: Convert to fraction form
    5,979.45/8,930.91 = 5,415.74/x
  3. Step 3: Cross multiply
    5,979.45x = 8,930.91 × 5,415.74
  4. Step 4: Simplify right side
    5,979.45x = 48,367,486.52
  5. Step 5: Solve for x
    x = 48,367,486.52/5,979.45
  6. Step 6: Final answer
    x = 8,088.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.