Home / 5,019.76-7,527.08-1,686.86

Finding the Fourth Proportional to 5,019.76, 7,527.08 and 1,686.86

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Solution

The fourth proportional to 5,019.76, 7,527.08 and 1,686.86 is: 2,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.76 : 7,527.08 = 1,686.86 : x
  2. Step 2: Convert to fraction form
    5,019.76/7,527.08 = 1,686.86/x
  3. Step 3: Cross multiply
    5,019.76x = 7,527.08 × 1,686.86
  4. Step 4: Simplify right side
    5,019.76x = 12,697,115.49
  5. Step 5: Solve for x
    x = 12,697,115.49/5,019.76
  6. Step 6: Final answer
    x = 2,529.43

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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.