Home / 2,756.39-4,155.23-2,573.08

Finding the Fourth Proportional to 2,756.39, 4,155.23 and 2,573.08

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Solution

The fourth proportional to 2,756.39, 4,155.23 and 2,573.08 is: 3,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.39 : 4,155.23 = 2,573.08 : x
  2. Step 2: Convert to fraction form
    2,756.39/4,155.23 = 2,573.08/x
  3. Step 3: Cross multiply
    2,756.39x = 4,155.23 × 2,573.08
  4. Step 4: Simplify right side
    2,756.39x = 10,691,741.19
  5. Step 5: Solve for x
    x = 10,691,741.19/2,756.39
  6. Step 6: Final answer
    x = 3,878.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.