Home / 4,989.55-7,484.27-1,911.55

Finding the Fourth Proportional to 4,989.55, 7,484.27 and 1,911.55

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Solution

The fourth proportional to 4,989.55, 7,484.27 and 1,911.55 is: 2,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.55 : 7,484.27 = 1,911.55 : x
  2. Step 2: Convert to fraction form
    4,989.55/7,484.27 = 1,911.55/x
  3. Step 3: Cross multiply
    4,989.55x = 7,484.27 × 1,911.55
  4. Step 4: Simplify right side
    4,989.55x = 14,306,556.32
  5. Step 5: Solve for x
    x = 14,306,556.32/4,989.55
  6. Step 6: Final answer
    x = 2,867.30

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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.