Home / 3,520.13-5,280.10-923.07

Finding the Fourth Proportional to 3,520.13, 5,280.10 and 923.07

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Solution

The fourth proportional to 3,520.13, 5,280.10 and 923.07 is: 1,384.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.13 : 5,280.10 = 923.07 : x
  2. Step 2: Convert to fraction form
    3,520.13/5,280.10 = 923.07/x
  3. Step 3: Cross multiply
    3,520.13x = 5,280.10 × 923.07
  4. Step 4: Simplify right side
    3,520.13x = 4,873,901.91
  5. Step 5: Solve for x
    x = 4,873,901.91/3,520.13
  6. Step 6: Final answer
    x = 1,384.58

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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.