Home / 2,174.47-2,999.66-1,376.45

Finding the Fourth Proportional to 2,174.47, 2,999.66 and 1,376.45

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Solution

The fourth proportional to 2,174.47, 2,999.66 and 1,376.45 is: 1,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.47 : 2,999.66 = 1,376.45 : x
  2. Step 2: Convert to fraction form
    2,174.47/2,999.66 = 1,376.45/x
  3. Step 3: Cross multiply
    2,174.47x = 2,999.66 × 1,376.45
  4. Step 4: Simplify right side
    2,174.47x = 4,128,882.01
  5. Step 5: Solve for x
    x = 4,128,882.01/2,174.47
  6. Step 6: Final answer
    x = 1,898.80

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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.