Home / 5,613.76-8,418.79-1,864.70

Finding the Fourth Proportional to 5,613.76, 8,418.79 and 1,864.70

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Solution

The fourth proportional to 5,613.76, 8,418.79 and 1,864.70 is: 2,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.76 : 8,418.79 = 1,864.70 : x
  2. Step 2: Convert to fraction form
    5,613.76/8,418.79 = 1,864.70/x
  3. Step 3: Cross multiply
    5,613.76x = 8,418.79 × 1,864.70
  4. Step 4: Simplify right side
    5,613.76x = 15,698,475.35
  5. Step 5: Solve for x
    x = 15,698,475.35/5,613.76
  6. Step 6: Final answer
    x = 2,796.43

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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.