Home / 4,275.88-6,416.52-1,678.76

Finding the Fourth Proportional to 4,275.88, 6,416.52 and 1,678.76

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Solution

The fourth proportional to 4,275.88, 6,416.52 and 1,678.76 is: 2,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275.88 : 6,416.52 = 1,678.76 : x
  2. Step 2: Convert to fraction form
    4,275.88/6,416.52 = 1,678.76/x
  3. Step 3: Cross multiply
    4,275.88x = 6,416.52 × 1,678.76
  4. Step 4: Simplify right side
    4,275.88x = 10,771,797.12
  5. Step 5: Solve for x
    x = 10,771,797.12/4,275.88
  6. Step 6: Final answer
    x = 2,519.20

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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.