Home / 3,615.12-5,421.58-1,535.08

Finding the Fourth Proportional to 3,615.12, 5,421.58 and 1,535.08

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Solution

The fourth proportional to 3,615.12, 5,421.58 and 1,535.08 is: 2,302.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.12 : 5,421.58 = 1,535.08 : x
  2. Step 2: Convert to fraction form
    3,615.12/5,421.58 = 1,535.08/x
  3. Step 3: Cross multiply
    3,615.12x = 5,421.58 × 1,535.08
  4. Step 4: Simplify right side
    3,615.12x = 8,322,559.03
  5. Step 5: Solve for x
    x = 8,322,559.03/3,615.12
  6. Step 6: Final answer
    x = 2,302.15

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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.