Home / 4,555.90-6,830.20-4,191.40

Finding the Fourth Proportional to 4,555.90, 6,830.20 and 4,191.40

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Solution

The fourth proportional to 4,555.90, 6,830.20 and 4,191.40 is: 6,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,555.90 : 6,830.20 = 4,191.40 : x
  2. Step 2: Convert to fraction form
    4,555.90/6,830.20 = 4,191.40/x
  3. Step 3: Cross multiply
    4,555.90x = 6,830.20 × 4,191.40
  4. Step 4: Simplify right side
    4,555.90x = 28,628,100.28
  5. Step 5: Solve for x
    x = 28,628,100.28/4,555.90
  6. Step 6: Final answer
    x = 6,283.74

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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.