Home / 7,834.65-10,812.11-4,297.78

Finding the Fourth Proportional to 7,834.65, 10,812.11 and 4,297.78

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Solution

The fourth proportional to 7,834.65, 10,812.11 and 4,297.78 is: 5,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,834.65 : 10,812.11 = 4,297.78 : x
  2. Step 2: Convert to fraction form
    7,834.65/10,812.11 = 4,297.78/x
  3. Step 3: Cross multiply
    7,834.65x = 10,812.11 × 4,297.78
  4. Step 4: Simplify right side
    7,834.65x = 46,468,070.12
  5. Step 5: Solve for x
    x = 46,468,070.12/7,834.65
  6. Step 6: Final answer
    x = 5,931.10

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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.