Home / 2,925.51-4,405.34-2,109.43

Finding the Fourth Proportional to 2,925.51, 4,405.34 and 2,109.43

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Solution

The fourth proportional to 2,925.51, 4,405.34 and 2,109.43 is: 3,176.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.51 : 4,405.34 = 2,109.43 : x
  2. Step 2: Convert to fraction form
    2,925.51/4,405.34 = 2,109.43/x
  3. Step 3: Cross multiply
    2,925.51x = 4,405.34 × 2,109.43
  4. Step 4: Simplify right side
    2,925.51x = 9,292,756.36
  5. Step 5: Solve for x
    x = 9,292,756.36/2,925.51
  6. Step 6: Final answer
    x = 3,176.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.