Home / 4,947.60-7,421.40-4,734.30

Finding the Fourth Proportional to 4,947.60, 7,421.40 and 4,734.30

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Solution

The fourth proportional to 4,947.60, 7,421.40 and 4,734.30 is: 7,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.60 : 7,421.40 = 4,734.30 : x
  2. Step 2: Convert to fraction form
    4,947.60/7,421.40 = 4,734.30/x
  3. Step 3: Cross multiply
    4,947.60x = 7,421.40 × 4,734.30
  4. Step 4: Simplify right side
    4,947.60x = 35,135,134.02
  5. Step 5: Solve for x
    x = 35,135,134.02/4,947.60
  6. Step 6: Final answer
    x = 7,101.45

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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.