Home / 5,316.91-7,975.23-1,618.99

Finding the Fourth Proportional to 5,316.91, 7,975.23 and 1,618.99

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Solution

The fourth proportional to 5,316.91, 7,975.23 and 1,618.99 is: 2,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.91 : 7,975.23 = 1,618.99 : x
  2. Step 2: Convert to fraction form
    5,316.91/7,975.23 = 1,618.99/x
  3. Step 3: Cross multiply
    5,316.91x = 7,975.23 × 1,618.99
  4. Step 4: Simplify right side
    5,316.91x = 12,911,817.62
  5. Step 5: Solve for x
    x = 12,911,817.62/5,316.91
  6. Step 6: Final answer
    x = 2,428.44

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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.