Home / 3,120.28-4,655.86-3,014.57

Finding the Fourth Proportional to 3,120.28, 4,655.86 and 3,014.57

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Solution

The fourth proportional to 3,120.28, 4,655.86 and 3,014.57 is: 4,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.28 : 4,655.86 = 3,014.57 : x
  2. Step 2: Convert to fraction form
    3,120.28/4,655.86 = 3,014.57/x
  3. Step 3: Cross multiply
    3,120.28x = 4,655.86 × 3,014.57
  4. Step 4: Simplify right side
    3,120.28x = 14,035,415.88
  5. Step 5: Solve for x
    x = 14,035,415.88/3,120.28
  6. Step 6: Final answer
    x = 4,498.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.