Home / 2,925.40-4,386.45-2,579.56

Finding the Fourth Proportional to 2,925.40, 4,386.45 and 2,579.56

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Solution

The fourth proportional to 2,925.40, 4,386.45 and 2,579.56 is: 3,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.40 : 4,386.45 = 2,579.56 : x
  2. Step 2: Convert to fraction form
    2,925.40/4,386.45 = 2,579.56/x
  3. Step 3: Cross multiply
    2,925.40x = 4,386.45 × 2,579.56
  4. Step 4: Simplify right side
    2,925.40x = 11,315,110.96
  5. Step 5: Solve for x
    x = 11,315,110.96/2,925.40
  6. Step 6: Final answer
    x = 3,867.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.