Home / 2,455.95-3,666.73-2,158.40

Finding the Fourth Proportional to 2,455.95, 3,666.73 and 2,158.40

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Solution

The fourth proportional to 2,455.95, 3,666.73 and 2,158.40 is: 3,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.95 : 3,666.73 = 2,158.40 : x
  2. Step 2: Convert to fraction form
    2,455.95/3,666.73 = 2,158.40/x
  3. Step 3: Cross multiply
    2,455.95x = 3,666.73 × 2,158.40
  4. Step 4: Simplify right side
    2,455.95x = 7,914,273.73
  5. Step 5: Solve for x
    x = 7,914,273.73/2,455.95
  6. Step 6: Final answer
    x = 3,222.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.