Home / 4,913.28-7,370.72-1,991.84

Finding the Fourth Proportional to 4,913.28, 7,370.72 and 1,991.84

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Solution

The fourth proportional to 4,913.28, 7,370.72 and 1,991.84 is: 2,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.28 : 7,370.72 = 1,991.84 : x
  2. Step 2: Convert to fraction form
    4,913.28/7,370.72 = 1,991.84/x
  3. Step 3: Cross multiply
    4,913.28x = 7,370.72 × 1,991.84
  4. Step 4: Simplify right side
    4,913.28x = 14,681,294.92
  5. Step 5: Solve for x
    x = 14,681,294.92/4,913.28
  6. Step 6: Final answer
    x = 2,988.08

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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.