Home / 5,090.81-7,635.29-1,759.05

Finding the Fourth Proportional to 5,090.81, 7,635.29 and 1,759.05

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Solution

The fourth proportional to 5,090.81, 7,635.29 and 1,759.05 is: 2,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.81 : 7,635.29 = 1,759.05 : x
  2. Step 2: Convert to fraction form
    5,090.81/7,635.29 = 1,759.05/x
  3. Step 3: Cross multiply
    5,090.81x = 7,635.29 × 1,759.05
  4. Step 4: Simplify right side
    5,090.81x = 13,430,848.08
  5. Step 5: Solve for x
    x = 13,430,848.08/5,090.81
  6. Step 6: Final answer
    x = 2,638.26

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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.