Home / 5,020.76-7,528.58-1,687.86

Finding the Fourth Proportional to 5,020.76, 7,528.58 and 1,687.86

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Solution

The fourth proportional to 5,020.76, 7,528.58 and 1,687.86 is: 2,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.76 : 7,528.58 = 1,687.86 : x
  2. Step 2: Convert to fraction form
    5,020.76/7,528.58 = 1,687.86/x
  3. Step 3: Cross multiply
    5,020.76x = 7,528.58 × 1,687.86
  4. Step 4: Simplify right side
    5,020.76x = 12,707,189.04
  5. Step 5: Solve for x
    x = 12,707,189.04/5,020.76
  6. Step 6: Final answer
    x = 2,530.93

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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.