Home / 7,811.83-10,782.59-4,456.47

Finding the Fourth Proportional to 7,811.83, 10,782.59 and 4,456.47

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Solution

The fourth proportional to 7,811.83, 10,782.59 and 4,456.47 is: 6,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.83 : 10,782.59 = 4,456.47 : x
  2. Step 2: Convert to fraction form
    7,811.83/10,782.59 = 4,456.47/x
  3. Step 3: Cross multiply
    7,811.83x = 10,782.59 × 4,456.47
  4. Step 4: Simplify right side
    7,811.83x = 48,052,266.57
  5. Step 5: Solve for x
    x = 48,052,266.57/7,811.83
  6. Step 6: Final answer
    x = 6,151.22

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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.