Home / 7,690.71-10,613.34-4,287.93

Finding the Fourth Proportional to 7,690.71, 10,613.34 and 4,287.93

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Solution

The fourth proportional to 7,690.71, 10,613.34 and 4,287.93 is: 5,917.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.71 : 10,613.34 = 4,287.93 : x
  2. Step 2: Convert to fraction form
    7,690.71/10,613.34 = 4,287.93/x
  3. Step 3: Cross multiply
    7,690.71x = 10,613.34 × 4,287.93
  4. Step 4: Simplify right side
    7,690.71x = 45,509,258.99
  5. Step 5: Solve for x
    x = 45,509,258.99/7,690.71
  6. Step 6: Final answer
    x = 5,917.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.