Home / 7,047.21-10,574.87-2,887.86

Finding the Fourth Proportional to 7,047.21, 10,574.87 and 2,887.86

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Solution

The fourth proportional to 7,047.21, 10,574.87 and 2,887.86 is: 4,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.21 : 10,574.87 = 2,887.86 : x
  2. Step 2: Convert to fraction form
    7,047.21/10,574.87 = 2,887.86/x
  3. Step 3: Cross multiply
    7,047.21x = 10,574.87 × 2,887.86
  4. Step 4: Simplify right side
    7,047.21x = 30,538,729.64
  5. Step 5: Solve for x
    x = 30,538,729.64/7,047.21
  6. Step 6: Final answer
    x = 4,333.45

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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.