Home / 4,919.40-7,378.29-2,451.60

Finding the Fourth Proportional to 4,919.40, 7,378.29 and 2,451.60

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Solution

The fourth proportional to 4,919.40, 7,378.29 and 2,451.60 is: 3,677.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.40 : 7,378.29 = 2,451.60 : x
  2. Step 2: Convert to fraction form
    4,919.40/7,378.29 = 2,451.60/x
  3. Step 3: Cross multiply
    4,919.40x = 7,378.29 × 2,451.60
  4. Step 4: Simplify right side
    4,919.40x = 18,088,615.76
  5. Step 5: Solve for x
    x = 18,088,615.76/4,919.40
  6. Step 6: Final answer
    x = 3,677.00

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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.