Home / 5,281.50-7,921.93-1,994.16

Finding the Fourth Proportional to 5,281.50, 7,921.93 and 1,994.16

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Solution

The fourth proportional to 5,281.50, 7,921.93 and 1,994.16 is: 2,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.50 : 7,921.93 = 1,994.16 : x
  2. Step 2: Convert to fraction form
    5,281.50/7,921.93 = 1,994.16/x
  3. Step 3: Cross multiply
    5,281.50x = 7,921.93 × 1,994.16
  4. Step 4: Simplify right side
    5,281.50x = 15,797,595.93
  5. Step 5: Solve for x
    x = 15,797,595.93/5,281.50
  6. Step 6: Final answer
    x = 2,991.12

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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.