Home / 5,087.21-7,020.61-2,848.95

Finding the Fourth Proportional to 5,087.21, 7,020.61 and 2,848.95

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Solution

The fourth proportional to 5,087.21, 7,020.61 and 2,848.95 is: 3,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.21 : 7,020.61 = 2,848.95 : x
  2. Step 2: Convert to fraction form
    5,087.21/7,020.61 = 2,848.95/x
  3. Step 3: Cross multiply
    5,087.21x = 7,020.61 × 2,848.95
  4. Step 4: Simplify right side
    5,087.21x = 20,001,359.74
  5. Step 5: Solve for x
    x = 20,001,359.74/5,087.21
  6. Step 6: Final answer
    x = 3,931.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.