Home / 7,784.73-10,742.85-4,247.91

Finding the Fourth Proportional to 7,784.73, 10,742.85 and 4,247.91

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Solution

The fourth proportional to 7,784.73, 10,742.85 and 4,247.91 is: 5,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.73 : 10,742.85 = 4,247.91 : x
  2. Step 2: Convert to fraction form
    7,784.73/10,742.85 = 4,247.91/x
  3. Step 3: Cross multiply
    7,784.73x = 10,742.85 × 4,247.91
  4. Step 4: Simplify right side
    7,784.73x = 45,634,659.94
  5. Step 5: Solve for x
    x = 45,634,659.94/7,784.73
  6. Step 6: Final answer
    x = 5,862.07

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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.