Home / 5,432.40-7,485.96-3,856.08

Finding the Fourth Proportional to 5,432.40, 7,485.96 and 3,856.08

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Solution

The fourth proportional to 5,432.40, 7,485.96 and 3,856.08 is: 5,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.40 : 7,485.96 = 3,856.08 : x
  2. Step 2: Convert to fraction form
    5,432.40/7,485.96 = 3,856.08/x
  3. Step 3: Cross multiply
    5,432.40x = 7,485.96 × 3,856.08
  4. Step 4: Simplify right side
    5,432.40x = 28,866,460.64
  5. Step 5: Solve for x
    x = 28,866,460.64/5,432.40
  6. Step 6: Final answer
    x = 5,313.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.