Home / 3,455.10-4,768.66-2,038.70

Finding the Fourth Proportional to 3,455.10, 4,768.66 and 2,038.70

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Solution

The fourth proportional to 3,455.10, 4,768.66 and 2,038.70 is: 2,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.10 : 4,768.66 = 2,038.70 : x
  2. Step 2: Convert to fraction form
    3,455.10/4,768.66 = 2,038.70/x
  3. Step 3: Cross multiply
    3,455.10x = 4,768.66 × 2,038.70
  4. Step 4: Simplify right side
    3,455.10x = 9,721,867.14
  5. Step 5: Solve for x
    x = 9,721,867.14/3,455.10
  6. Step 6: Final answer
    x = 2,813.77

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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.