Home / 2,925.66-4,389.26-977.88

Finding the Fourth Proportional to 2,925.66, 4,389.26 and 977.88

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Solution

The fourth proportional to 2,925.66, 4,389.26 and 977.88 is: 1,467.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.66 : 4,389.26 = 977.88 : x
  2. Step 2: Convert to fraction form
    2,925.66/4,389.26 = 977.88/x
  3. Step 3: Cross multiply
    2,925.66x = 4,389.26 × 977.88
  4. Step 4: Simplify right side
    2,925.66x = 4,292,164.68
  5. Step 5: Solve for x
    x = 4,292,164.68/2,925.66
  6. Step 6: Final answer
    x = 1,467.08

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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.