Home / 3,925.09-5,415.55-2,528.65

Finding the Fourth Proportional to 3,925.09, 5,415.55 and 2,528.65

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Solution

The fourth proportional to 3,925.09, 5,415.55 and 2,528.65 is: 3,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.09 : 5,415.55 = 2,528.65 : x
  2. Step 2: Convert to fraction form
    3,925.09/5,415.55 = 2,528.65/x
  3. Step 3: Cross multiply
    3,925.09x = 5,415.55 × 2,528.65
  4. Step 4: Simplify right side
    3,925.09x = 13,694,030.51
  5. Step 5: Solve for x
    x = 13,694,030.51/3,925.09
  6. Step 6: Final answer
    x = 3,488.84

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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.