Home / 4,477.80-6,716.70-1,191.40

Finding the Fourth Proportional to 4,477.80, 6,716.70 and 1,191.40

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Solution

The fourth proportional to 4,477.80, 6,716.70 and 1,191.40 is: 1,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,477.80 : 6,716.70 = 1,191.40 : x
  2. Step 2: Convert to fraction form
    4,477.80/6,716.70 = 1,191.40/x
  3. Step 3: Cross multiply
    4,477.80x = 6,716.70 × 1,191.40
  4. Step 4: Simplify right side
    4,477.80x = 8,002,276.38
  5. Step 5: Solve for x
    x = 8,002,276.38/4,477.80
  6. Step 6: Final answer
    x = 1,787.10

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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.