Home / 2,878.30-4,315.08-1,492.03

Finding the Fourth Proportional to 2,878.30, 4,315.08 and 1,492.03

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Solution

The fourth proportional to 2,878.30, 4,315.08 and 1,492.03 is: 2,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.30 : 4,315.08 = 1,492.03 : x
  2. Step 2: Convert to fraction form
    2,878.30/4,315.08 = 1,492.03/x
  3. Step 3: Cross multiply
    2,878.30x = 4,315.08 × 1,492.03
  4. Step 4: Simplify right side
    2,878.30x = 6,438,228.81
  5. Step 5: Solve for x
    x = 6,438,228.81/2,878.30
  6. Step 6: Final answer
    x = 2,236.82

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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.