Home / 2,179.17-2,999.70-1,895.40

Finding the Fourth Proportional to 2,179.17, 2,999.70 and 1,895.40

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Solution

The fourth proportional to 2,179.17, 2,999.70 and 1,895.40 is: 2,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.17 : 2,999.70 = 1,895.40 : x
  2. Step 2: Convert to fraction form
    2,179.17/2,999.70 = 1,895.40/x
  3. Step 3: Cross multiply
    2,179.17x = 2,999.70 × 1,895.40
  4. Step 4: Simplify right side
    2,179.17x = 5,685,631.38
  5. Step 5: Solve for x
    x = 5,685,631.38/2,179.17
  6. Step 6: Final answer
    x = 2,609.08

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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.