Home / 2,768.65-4,152.37-1,125.57

Finding the Fourth Proportional to 2,768.65, 4,152.37 and 1,125.57

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Solution

The fourth proportional to 2,768.65, 4,152.37 and 1,125.57 is: 1,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.65 : 4,152.37 = 1,125.57 : x
  2. Step 2: Convert to fraction form
    2,768.65/4,152.37 = 1,125.57/x
  3. Step 3: Cross multiply
    2,768.65x = 4,152.37 × 1,125.57
  4. Step 4: Simplify right side
    2,768.65x = 4,673,756.71
  5. Step 5: Solve for x
    x = 4,673,756.71/2,768.65
  6. Step 6: Final answer
    x = 1,688.10

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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.