Home / 3,615.40-5,427.96-2,319.40

Finding the Fourth Proportional to 3,615.40, 5,427.96 and 2,319.40

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Solution

The fourth proportional to 3,615.40, 5,427.96 and 2,319.40 is: 3,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.40 : 5,427.96 = 2,319.40 : x
  2. Step 2: Convert to fraction form
    3,615.40/5,427.96 = 2,319.40/x
  3. Step 3: Cross multiply
    3,615.40x = 5,427.96 × 2,319.40
  4. Step 4: Simplify right side
    3,615.40x = 12,589,610.42
  5. Step 5: Solve for x
    x = 12,589,610.42/3,615.40
  6. Step 6: Final answer
    x = 3,482.22

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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.