Home / 5,177.11-7,763.87-1,478.35

Finding the Fourth Proportional to 5,177.11, 7,763.87 and 1,478.35

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Solution

The fourth proportional to 5,177.11, 7,763.87 and 1,478.35 is: 2,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.11 : 7,763.87 = 1,478.35 : x
  2. Step 2: Convert to fraction form
    5,177.11/7,763.87 = 1,478.35/x
  3. Step 3: Cross multiply
    5,177.11x = 7,763.87 × 1,478.35
  4. Step 4: Simplify right side
    5,177.11x = 11,477,671.00
  5. Step 5: Solve for x
    x = 11,477,671.00/5,177.11
  6. Step 6: Final answer
    x = 2,217.01

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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.