Home / 4,709.80-7,062.96-1,421.92

Finding the Fourth Proportional to 4,709.80, 7,062.96 and 1,421.92

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Solution

The fourth proportional to 4,709.80, 7,062.96 and 1,421.92 is: 2,132.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.80 : 7,062.96 = 1,421.92 : x
  2. Step 2: Convert to fraction form
    4,709.80/7,062.96 = 1,421.92/x
  3. Step 3: Cross multiply
    4,709.80x = 7,062.96 × 1,421.92
  4. Step 4: Simplify right side
    4,709.80x = 10,042,964.08
  5. Step 5: Solve for x
    x = 10,042,964.08/4,709.80
  6. Step 6: Final answer
    x = 2,132.35

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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.