Home / 1,590.63-2,382.90-1,242.33

Finding the Fourth Proportional to 1,590.63, 2,382.90 and 1,242.33

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Solution

The fourth proportional to 1,590.63, 2,382.90 and 1,242.33 is: 1,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.63 : 2,382.90 = 1,242.33 : x
  2. Step 2: Convert to fraction form
    1,590.63/2,382.90 = 1,242.33/x
  3. Step 3: Cross multiply
    1,590.63x = 2,382.90 × 1,242.33
  4. Step 4: Simplify right side
    1,590.63x = 2,960,348.16
  5. Step 5: Solve for x
    x = 2,960,348.16/1,590.63
  6. Step 6: Final answer
    x = 1,861.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.