Home / 1,590.28-2,192.68-1,368.85

Finding the Fourth Proportional to 1,590.28, 2,192.68 and 1,368.85

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Solution

The fourth proportional to 1,590.28, 2,192.68 and 1,368.85 is: 1,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.28 : 2,192.68 = 1,368.85 : x
  2. Step 2: Convert to fraction form
    1,590.28/2,192.68 = 1,368.85/x
  3. Step 3: Cross multiply
    1,590.28x = 2,192.68 × 1,368.85
  4. Step 4: Simplify right side
    1,590.28x = 3,001,450.02
  5. Step 5: Solve for x
    x = 3,001,450.02/1,590.28
  6. Step 6: Final answer
    x = 1,887.37

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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.