Home / 3,649.46-5,070.40-3,605.72

Finding the Fourth Proportional to 3,649.46, 5,070.40 and 3,605.72

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Solution

The fourth proportional to 3,649.46, 5,070.40 and 3,605.72 is: 5,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.46 : 5,070.40 = 3,605.72 : x
  2. Step 2: Convert to fraction form
    3,649.46/5,070.40 = 3,605.72/x
  3. Step 3: Cross multiply
    3,649.46x = 5,070.40 × 3,605.72
  4. Step 4: Simplify right side
    3,649.46x = 18,282,408.32
  5. Step 5: Solve for x
    x = 18,282,408.32/3,649.46
  6. Step 6: Final answer
    x = 5,009.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.