Home / 3,904.60-5,856.30-1,439.08

Finding the Fourth Proportional to 3,904.60, 5,856.30 and 1,439.08

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Solution

The fourth proportional to 3,904.60, 5,856.30 and 1,439.08 is: 2,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.60 : 5,856.30 = 1,439.08 : x
  2. Step 2: Convert to fraction form
    3,904.60/5,856.30 = 1,439.08/x
  3. Step 3: Cross multiply
    3,904.60x = 5,856.30 × 1,439.08
  4. Step 4: Simplify right side
    3,904.60x = 8,427,684.20
  5. Step 5: Solve for x
    x = 8,427,684.20/3,904.60
  6. Step 6: Final answer
    x = 2,158.40

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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.