Home / 5,090.40-7,635.60-1,801.70

Finding the Fourth Proportional to 5,090.40, 7,635.60 and 1,801.70

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Solution

The fourth proportional to 5,090.40, 7,635.60 and 1,801.70 is: 2,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.40 : 7,635.60 = 1,801.70 : x
  2. Step 2: Convert to fraction form
    5,090.40/7,635.60 = 1,801.70/x
  3. Step 3: Cross multiply
    5,090.40x = 7,635.60 × 1,801.70
  4. Step 4: Simplify right side
    5,090.40x = 13,757,060.52
  5. Step 5: Solve for x
    x = 13,757,060.52/5,090.40
  6. Step 6: Final answer
    x = 2,702.55

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1.5x scale

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.