Home / 7,146.40-10,720.32-2,465.80

Finding the Fourth Proportional to 7,146.40, 10,720.32 and 2,465.80

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Solution

The fourth proportional to 7,146.40, 10,720.32 and 2,465.80 is: 3,698.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.40 : 10,720.32 = 2,465.80 : x
  2. Step 2: Convert to fraction form
    7,146.40/10,720.32 = 2,465.80/x
  3. Step 3: Cross multiply
    7,146.40x = 10,720.32 × 2,465.80
  4. Step 4: Simplify right side
    7,146.40x = 26,434,165.06
  5. Step 5: Solve for x
    x = 26,434,165.06/7,146.40
  6. Step 6: Final answer
    x = 3,698.95

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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.