Home / 3,915.09-5,404.29-2,590.59

Finding the Fourth Proportional to 3,915.09, 5,404.29 and 2,590.59

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Solution

The fourth proportional to 3,915.09, 5,404.29 and 2,590.59 is: 3,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.09 : 5,404.29 = 2,590.59 : x
  2. Step 2: Convert to fraction form
    3,915.09/5,404.29 = 2,590.59/x
  3. Step 3: Cross multiply
    3,915.09x = 5,404.29 × 2,590.59
  4. Step 4: Simplify right side
    3,915.09x = 14,000,299.63
  5. Step 5: Solve for x
    x = 14,000,299.63/3,915.09
  6. Step 6: Final answer
    x = 3,575.98

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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.