Home / 7,421.40-10,240.22-4,276.98

Finding the Fourth Proportional to 7,421.40, 10,240.22 and 4,276.98

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Solution

The fourth proportional to 7,421.40, 10,240.22 and 4,276.98 is: 5,901.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.40 : 10,240.22 = 4,276.98 : x
  2. Step 2: Convert to fraction form
    7,421.40/10,240.22 = 4,276.98/x
  3. Step 3: Cross multiply
    7,421.40x = 10,240.22 × 4,276.98
  4. Step 4: Simplify right side
    7,421.40x = 43,797,216.14
  5. Step 5: Solve for x
    x = 43,797,216.14/7,421.40
  6. Step 6: Final answer
    x = 5,901.48

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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.