Home / 5,642.36-8,463.81-3,423.57

Finding the Fourth Proportional to 5,642.36, 8,463.81 and 3,423.57

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Solution

The fourth proportional to 5,642.36, 8,463.81 and 3,423.57 is: 5,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.36 : 8,463.81 = 3,423.57 : x
  2. Step 2: Convert to fraction form
    5,642.36/8,463.81 = 3,423.57/x
  3. Step 3: Cross multiply
    5,642.36x = 8,463.81 × 3,423.57
  4. Step 4: Simplify right side
    5,642.36x = 28,976,386.56
  5. Step 5: Solve for x
    x = 28,976,386.56/5,642.36
  6. Step 6: Final answer
    x = 5,135.51

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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.