Home / 3,590.04-5,385.60-1,281

Finding the Fourth Proportional to 3,590.04, 5,385.60 and 1,281

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Solution

The fourth proportional to 3,590.04, 5,385.60 and 1,281 is: 1,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.04 : 5,385.60 = 1,281 : x
  2. Step 2: Convert to fraction form
    3,590.04/5,385.60 = 1,281/x
  3. Step 3: Cross multiply
    3,590.04x = 5,385.60 × 1,281
  4. Step 4: Simplify right side
    3,590.04x = 6,898,953.60
  5. Step 5: Solve for x
    x = 6,898,953.60/3,590.04
  6. Step 6: Final answer
    x = 1,921.69

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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.