Home / 3,712.24-5,566.80-1,520.40

Finding the Fourth Proportional to 3,712.24, 5,566.80 and 1,520.40

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Solution

The fourth proportional to 3,712.24, 5,566.80 and 1,520.40 is: 2,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.24 : 5,566.80 = 1,520.40 : x
  2. Step 2: Convert to fraction form
    3,712.24/5,566.80 = 1,520.40/x
  3. Step 3: Cross multiply
    3,712.24x = 5,566.80 × 1,520.40
  4. Step 4: Simplify right side
    3,712.24x = 8,463,762.72
  5. Step 5: Solve for x
    x = 8,463,762.72/3,712.24
  6. Step 6: Final answer
    x = 2,279.96

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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.