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Finding the Fourth Proportional to 2,590.90, 3,574.22 and 1,751.90

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Solution

The fourth proportional to 2,590.90, 3,574.22 and 1,751.90 is: 2,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.90 : 3,574.22 = 1,751.90 : x
  2. Step 2: Convert to fraction form
    2,590.90/3,574.22 = 1,751.90/x
  3. Step 3: Cross multiply
    2,590.90x = 3,574.22 × 1,751.90
  4. Step 4: Simplify right side
    2,590.90x = 6,261,676.02
  5. Step 5: Solve for x
    x = 6,261,676.02/2,590.90
  6. Step 6: Final answer
    x = 2,416.80

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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.