Home / 7,423.12-10,243.79-4,065.91

Finding the Fourth Proportional to 7,423.12, 10,243.79 and 4,065.91

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Solution

The fourth proportional to 7,423.12, 10,243.79 and 4,065.91 is: 5,610.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.12 : 10,243.79 = 4,065.91 : x
  2. Step 2: Convert to fraction form
    7,423.12/10,243.79 = 4,065.91/x
  3. Step 3: Cross multiply
    7,423.12x = 10,243.79 × 4,065.91
  4. Step 4: Simplify right side
    7,423.12x = 41,650,328.20
  5. Step 5: Solve for x
    x = 41,650,328.20/7,423.12
  6. Step 6: Final answer
    x = 5,610.89

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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.