Home / 7,812.74-10,781.58-4,275.94

Finding the Fourth Proportional to 7,812.74, 10,781.58 and 4,275.94

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Solution

The fourth proportional to 7,812.74, 10,781.58 and 4,275.94 is: 5,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.74 : 10,781.58 = 4,275.94 : x
  2. Step 2: Convert to fraction form
    7,812.74/10,781.58 = 4,275.94/x
  3. Step 3: Cross multiply
    7,812.74x = 10,781.58 × 4,275.94
  4. Step 4: Simplify right side
    7,812.74x = 46,101,389.19
  5. Step 5: Solve for x
    x = 46,101,389.19/7,812.74
  6. Step 6: Final answer
    x = 5,900.80

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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.