Home / 5,212.29-7,818.39-1,316.70

Finding the Fourth Proportional to 5,212.29, 7,818.39 and 1,316.70

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Solution

The fourth proportional to 5,212.29, 7,818.39 and 1,316.70 is: 1,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.29 : 7,818.39 = 1,316.70 : x
  2. Step 2: Convert to fraction form
    5,212.29/7,818.39 = 1,316.70/x
  3. Step 3: Cross multiply
    5,212.29x = 7,818.39 × 1,316.70
  4. Step 4: Simplify right side
    5,212.29x = 10,294,474.11
  5. Step 5: Solve for x
    x = 10,294,474.11/5,212.29
  6. Step 6: Final answer
    x = 1,975.04

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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.