Home / 2,925.51-4,388.28-977.70

Finding the Fourth Proportional to 2,925.51, 4,388.28 and 977.70

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Solution

The fourth proportional to 2,925.51, 4,388.28 and 977.70 is: 1,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.51 : 4,388.28 = 977.70 : x
  2. Step 2: Convert to fraction form
    2,925.51/4,388.28 = 977.70/x
  3. Step 3: Cross multiply
    2,925.51x = 4,388.28 × 977.70
  4. Step 4: Simplify right side
    2,925.51x = 4,290,434.15
  5. Step 5: Solve for x
    x = 4,290,434.15/2,925.51
  6. Step 6: Final answer
    x = 1,466.56

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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.