Home / 6,290.63-8,678.85-3,773.55

Finding the Fourth Proportional to 6,290.63, 8,678.85 and 3,773.55

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Solution

The fourth proportional to 6,290.63, 8,678.85 and 3,773.55 is: 5,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.63 : 8,678.85 = 3,773.55 : x
  2. Step 2: Convert to fraction form
    6,290.63/8,678.85 = 3,773.55/x
  3. Step 3: Cross multiply
    6,290.63x = 8,678.85 × 3,773.55
  4. Step 4: Simplify right side
    6,290.63x = 32,750,074.42
  5. Step 5: Solve for x
    x = 32,750,074.42/6,290.63
  6. Step 6: Final answer
    x = 5,206.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.