Home / 1,925.32-2,885.28-828.84

Finding the Fourth Proportional to 1,925.32, 2,885.28 and 828.84

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Solution

The fourth proportional to 1,925.32, 2,885.28 and 828.84 is: 1,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.32 : 2,885.28 = 828.84 : x
  2. Step 2: Convert to fraction form
    1,925.32/2,885.28 = 828.84/x
  3. Step 3: Cross multiply
    1,925.32x = 2,885.28 × 828.84
  4. Step 4: Simplify right side
    1,925.32x = 2,391,435.48
  5. Step 5: Solve for x
    x = 2,391,435.48/1,925.32
  6. Step 6: Final answer
    x = 1,242.10

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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.