Home / 5,243.30-7,234.95-3,118.79

Finding the Fourth Proportional to 5,243.30, 7,234.95 and 3,118.79

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Solution

The fourth proportional to 5,243.30, 7,234.95 and 3,118.79 is: 4,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.30 : 7,234.95 = 3,118.79 : x
  2. Step 2: Convert to fraction form
    5,243.30/7,234.95 = 3,118.79/x
  3. Step 3: Cross multiply
    5,243.30x = 7,234.95 × 3,118.79
  4. Step 4: Simplify right side
    5,243.30x = 22,564,289.71
  5. Step 5: Solve for x
    x = 22,564,289.71/5,243.30
  6. Step 6: Final answer
    x = 4,303.45

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1.5x scale

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.