Home / 3,423.48-4,724.64-1,931.54

Finding the Fourth Proportional to 3,423.48, 4,724.64 and 1,931.54

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Solution

The fourth proportional to 3,423.48, 4,724.64 and 1,931.54 is: 2,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.48 : 4,724.64 = 1,931.54 : x
  2. Step 2: Convert to fraction form
    3,423.48/4,724.64 = 1,931.54/x
  3. Step 3: Cross multiply
    3,423.48x = 4,724.64 × 1,931.54
  4. Step 4: Simplify right side
    3,423.48x = 9,125,807.52
  5. Step 5: Solve for x
    x = 9,125,807.52/3,423.48
  6. Step 6: Final answer
    x = 2,665.65

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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.