Home / 3,921.96-5,886.18-1,615.08

Finding the Fourth Proportional to 3,921.96, 5,886.18 and 1,615.08

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Solution

The fourth proportional to 3,921.96, 5,886.18 and 1,615.08 is: 2,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.96 : 5,886.18 = 1,615.08 : x
  2. Step 2: Convert to fraction form
    3,921.96/5,886.18 = 1,615.08/x
  3. Step 3: Cross multiply
    3,921.96x = 5,886.18 × 1,615.08
  4. Step 4: Simplify right side
    3,921.96x = 9,506,651.59
  5. Step 5: Solve for x
    x = 9,506,651.59/3,921.96
  6. Step 6: Final answer
    x = 2,423.95

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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.