Home / 2,756.08-3,803.70-1,916.56

Finding the Fourth Proportional to 2,756.08, 3,803.70 and 1,916.56

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Solution

The fourth proportional to 2,756.08, 3,803.70 and 1,916.56 is: 2,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.08 : 3,803.70 = 1,916.56 : x
  2. Step 2: Convert to fraction form
    2,756.08/3,803.70 = 1,916.56/x
  3. Step 3: Cross multiply
    2,756.08x = 3,803.70 × 1,916.56
  4. Step 4: Simplify right side
    2,756.08x = 7,290,019.27
  5. Step 5: Solve for x
    x = 7,290,019.27/2,756.08
  6. Step 6: Final answer
    x = 2,645.07

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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.