Home / 7,783.02-10,742.86-5,425.92

Finding the Fourth Proportional to 7,783.02, 10,742.86 and 5,425.92

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Solution

The fourth proportional to 7,783.02, 10,742.86 and 5,425.92 is: 7,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.02 : 10,742.86 = 5,425.92 : x
  2. Step 2: Convert to fraction form
    7,783.02/10,742.86 = 5,425.92/x
  3. Step 3: Cross multiply
    7,783.02x = 10,742.86 × 5,425.92
  4. Step 4: Simplify right side
    7,783.02x = 58,289,845.22
  5. Step 5: Solve for x
    x = 58,289,845.22/7,783.02
  6. Step 6: Final answer
    x = 7,489.37

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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.