Home / 5,090.76-7,635.92-1,803.78

Finding the Fourth Proportional to 5,090.76, 7,635.92 and 1,803.78

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Solution

The fourth proportional to 5,090.76, 7,635.92 and 1,803.78 is: 2,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.76 : 7,635.92 = 1,803.78 : x
  2. Step 2: Convert to fraction form
    5,090.76/7,635.92 = 1,803.78/x
  3. Step 3: Cross multiply
    5,090.76x = 7,635.92 × 1,803.78
  4. Step 4: Simplify right side
    5,090.76x = 13,773,510.76
  5. Step 5: Solve for x
    x = 13,773,510.76/5,090.76
  6. Step 6: Final answer
    x = 2,705.59

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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.