Home / 7,415.60-10,230.36-4,900.40

Finding the Fourth Proportional to 7,415.60, 10,230.36 and 4,900.40

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Solution

The fourth proportional to 7,415.60, 10,230.36 and 4,900.40 is: 6,760.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.60 : 10,230.36 = 4,900.40 : x
  2. Step 2: Convert to fraction form
    7,415.60/10,230.36 = 4,900.40/x
  3. Step 3: Cross multiply
    7,415.60x = 10,230.36 × 4,900.40
  4. Step 4: Simplify right side
    7,415.60x = 50,132,856.14
  5. Step 5: Solve for x
    x = 50,132,856.14/7,415.60
  6. Step 6: Final answer
    x = 6,760.46

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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.