Home / 5,212.07-7,818.13-1,316.48

Finding the Fourth Proportional to 5,212.07, 7,818.13 and 1,316.48

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Solution

The fourth proportional to 5,212.07, 7,818.13 and 1,316.48 is: 1,974.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.07 : 7,818.13 = 1,316.48 : x
  2. Step 2: Convert to fraction form
    5,212.07/7,818.13 = 1,316.48/x
  3. Step 3: Cross multiply
    5,212.07x = 7,818.13 × 1,316.48
  4. Step 4: Simplify right side
    5,212.07x = 10,292,388.95
  5. Step 5: Solve for x
    x = 10,292,388.95/5,212.07
  6. Step 6: Final answer
    x = 1,974.72

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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.