Home / 7,812.81-10,781.66-4,276.01

Finding the Fourth Proportional to 7,812.81, 10,781.66 and 4,276.01

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Solution

The fourth proportional to 7,812.81, 10,781.66 and 4,276.01 is: 5,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.81 : 10,781.66 = 4,276.01 : x
  2. Step 2: Convert to fraction form
    7,812.81/10,781.66 = 4,276.01/x
  3. Step 3: Cross multiply
    7,812.81x = 10,781.66 × 4,276.01
  4. Step 4: Simplify right side
    7,812.81x = 46,102,523.62
  5. Step 5: Solve for x
    x = 46,102,523.62/7,812.81
  6. Step 6: Final answer
    x = 5,900.89

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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.