Home / 7,810.47-10,778.43-4,273.68

Finding the Fourth Proportional to 7,810.47, 10,778.43 and 4,273.68

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Solution

The fourth proportional to 7,810.47, 10,778.43 and 4,273.68 is: 5,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.47 : 10,778.43 = 4,273.68 : x
  2. Step 2: Convert to fraction form
    7,810.47/10,778.43 = 4,273.68/x
  3. Step 3: Cross multiply
    7,810.47x = 10,778.43 × 4,273.68
  4. Step 4: Simplify right side
    7,810.47x = 46,063,506.83
  5. Step 5: Solve for x
    x = 46,063,506.83/7,810.47
  6. Step 6: Final answer
    x = 5,897.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.