Home / 2,920.12-4,032.26-1,925.03

Finding the Fourth Proportional to 2,920.12, 4,032.26 and 1,925.03

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Solution

The fourth proportional to 2,920.12, 4,032.26 and 1,925.03 is: 2,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.12 : 4,032.26 = 1,925.03 : x
  2. Step 2: Convert to fraction form
    2,920.12/4,032.26 = 1,925.03/x
  3. Step 3: Cross multiply
    2,920.12x = 4,032.26 × 1,925.03
  4. Step 4: Simplify right side
    2,920.12x = 7,762,221.47
  5. Step 5: Solve for x
    x = 7,762,221.47/2,920.12
  6. Step 6: Final answer
    x = 2,658.19

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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.