Home / 4,254.40-6,381.55-1,913.11

Finding the Fourth Proportional to 4,254.40, 6,381.55 and 1,913.11

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Solution

The fourth proportional to 4,254.40, 6,381.55 and 1,913.11 is: 2,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.40 : 6,381.55 = 1,913.11 : x
  2. Step 2: Convert to fraction form
    4,254.40/6,381.55 = 1,913.11/x
  3. Step 3: Cross multiply
    4,254.40x = 6,381.55 × 1,913.11
  4. Step 4: Simplify right side
    4,254.40x = 12,208,607.12
  5. Step 5: Solve for x
    x = 12,208,607.12/4,254.40
  6. Step 6: Final answer
    x = 2,869.64

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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.