Home / 7,285.48-10,931.64-3,590.83

Finding the Fourth Proportional to 7,285.48, 10,931.64 and 3,590.83

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Solution

The fourth proportional to 7,285.48, 10,931.64 and 3,590.83 is: 5,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.48 : 10,931.64 = 3,590.83 : x
  2. Step 2: Convert to fraction form
    7,285.48/10,931.64 = 3,590.83/x
  3. Step 3: Cross multiply
    7,285.48x = 10,931.64 × 3,590.83
  4. Step 4: Simplify right side
    7,285.48x = 39,253,660.86
  5. Step 5: Solve for x
    x = 39,253,660.86/7,285.48
  6. Step 6: Final answer
    x = 5,387.93

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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.