Home / 4,785.73-7,178.93-1,275.68

Finding the Fourth Proportional to 4,785.73, 7,178.93 and 1,275.68

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Solution

The fourth proportional to 4,785.73, 7,178.93 and 1,275.68 is: 1,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.73 : 7,178.93 = 1,275.68 : x
  2. Step 2: Convert to fraction form
    4,785.73/7,178.93 = 1,275.68/x
  3. Step 3: Cross multiply
    4,785.73x = 7,178.93 × 1,275.68
  4. Step 4: Simplify right side
    4,785.73x = 9,158,017.42
  5. Step 5: Solve for x
    x = 9,158,017.42/4,785.73
  6. Step 6: Final answer
    x = 1,913.61

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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.