Home / 2,774.79-4,155.63-1,455.39

Finding the Fourth Proportional to 2,774.79, 4,155.63 and 1,455.39

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Solution

The fourth proportional to 2,774.79, 4,155.63 and 1,455.39 is: 2,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.79 : 4,155.63 = 1,455.39 : x
  2. Step 2: Convert to fraction form
    2,774.79/4,155.63 = 1,455.39/x
  3. Step 3: Cross multiply
    2,774.79x = 4,155.63 × 1,455.39
  4. Step 4: Simplify right side
    2,774.79x = 6,048,041.57
  5. Step 5: Solve for x
    x = 6,048,041.57/2,774.79
  6. Step 6: Final answer
    x = 2,179.64

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1.5x scale

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.