Home / 4,690.80-7,036.20-1,769.76

Finding the Fourth Proportional to 4,690.80, 7,036.20 and 1,769.76

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Solution

The fourth proportional to 4,690.80, 7,036.20 and 1,769.76 is: 2,654.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.80 : 7,036.20 = 1,769.76 : x
  2. Step 2: Convert to fraction form
    4,690.80/7,036.20 = 1,769.76/x
  3. Step 3: Cross multiply
    4,690.80x = 7,036.20 × 1,769.76
  4. Step 4: Simplify right side
    4,690.80x = 12,452,385.31
  5. Step 5: Solve for x
    x = 12,452,385.31/4,690.80
  6. Step 6: Final answer
    x = 2,654.64

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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.