Home / 3,104.34-4,656.32-913.20

Finding the Fourth Proportional to 3,104.34, 4,656.32 and 913.20

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Solution

The fourth proportional to 3,104.34, 4,656.32 and 913.20 is: 1,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.34 : 4,656.32 = 913.20 : x
  2. Step 2: Convert to fraction form
    3,104.34/4,656.32 = 913.20/x
  3. Step 3: Cross multiply
    3,104.34x = 4,656.32 × 913.20
  4. Step 4: Simplify right side
    3,104.34x = 4,252,151.42
  5. Step 5: Solve for x
    x = 4,252,151.42/3,104.34
  6. Step 6: Final answer
    x = 1,369.74

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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.