Home / 4,039.70-5,574.84-2,642.45

Finding the Fourth Proportional to 4,039.70, 5,574.84 and 2,642.45

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Solution

The fourth proportional to 4,039.70, 5,574.84 and 2,642.45 is: 3,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039.70 : 5,574.84 = 2,642.45 : x
  2. Step 2: Convert to fraction form
    4,039.70/5,574.84 = 2,642.45/x
  3. Step 3: Cross multiply
    4,039.70x = 5,574.84 × 2,642.45
  4. Step 4: Simplify right side
    4,039.70x = 14,731,208.08
  5. Step 5: Solve for x
    x = 14,731,208.08/4,039.70
  6. Step 6: Final answer
    x = 3,646.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.