Home / 2,925.60-4,388.13-977.82

Finding the Fourth Proportional to 2,925.60, 4,388.13 and 977.82

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Solution

The fourth proportional to 2,925.60, 4,388.13 and 977.82 is: 1,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.60 : 4,388.13 = 977.82 : x
  2. Step 2: Convert to fraction form
    2,925.60/4,388.13 = 977.82/x
  3. Step 3: Cross multiply
    2,925.60x = 4,388.13 × 977.82
  4. Step 4: Simplify right side
    2,925.60x = 4,290,801.28
  5. Step 5: Solve for x
    x = 4,290,801.28/2,925.60
  6. Step 6: Final answer
    x = 1,466.64

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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.