Home / 3,423.18-4,723.95-1,931.58

Finding the Fourth Proportional to 3,423.18, 4,723.95 and 1,931.58

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Solution

The fourth proportional to 3,423.18, 4,723.95 and 1,931.58 is: 2,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.18 : 4,723.95 = 1,931.58 : x
  2. Step 2: Convert to fraction form
    3,423.18/4,723.95 = 1,931.58/x
  3. Step 3: Cross multiply
    3,423.18x = 4,723.95 × 1,931.58
  4. Step 4: Simplify right side
    3,423.18x = 9,124,687.34
  5. Step 5: Solve for x
    x = 9,124,687.34/3,423.18
  6. Step 6: Final answer
    x = 2,665.56

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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.