Home / 2,925.30-4,387.80-2,105.04

Finding the Fourth Proportional to 2,925.30, 4,387.80 and 2,105.04

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Solution

The fourth proportional to 2,925.30, 4,387.80 and 2,105.04 is: 3,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.30 : 4,387.80 = 2,105.04 : x
  2. Step 2: Convert to fraction form
    2,925.30/4,387.80 = 2,105.04/x
  3. Step 3: Cross multiply
    2,925.30x = 4,387.80 × 2,105.04
  4. Step 4: Simplify right side
    2,925.30x = 9,236,494.51
  5. Step 5: Solve for x
    x = 9,236,494.51/2,925.30
  6. Step 6: Final answer
    x = 3,157.45

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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.