Home / 7,421.49-10,240.43-4,277.88

Finding the Fourth Proportional to 7,421.49, 10,240.43 and 4,277.88

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Solution

The fourth proportional to 7,421.49, 10,240.43 and 4,277.88 is: 5,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.49 : 10,240.43 = 4,277.88 : x
  2. Step 2: Convert to fraction form
    7,421.49/10,240.43 = 4,277.88/x
  3. Step 3: Cross multiply
    7,421.49x = 10,240.43 × 4,277.88
  4. Step 4: Simplify right side
    7,421.49x = 43,807,309.30
  5. Step 5: Solve for x
    x = 43,807,309.30/7,421.49
  6. Step 6: Final answer
    x = 5,902.76

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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.