Home / 3,779.40-5,214.51-2,381.34

Finding the Fourth Proportional to 3,779.40, 5,214.51 and 2,381.34

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Solution

The fourth proportional to 3,779.40, 5,214.51 and 2,381.34 is: 3,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.40 : 5,214.51 = 2,381.34 : x
  2. Step 2: Convert to fraction form
    3,779.40/5,214.51 = 2,381.34/x
  3. Step 3: Cross multiply
    3,779.40x = 5,214.51 × 2,381.34
  4. Step 4: Simplify right side
    3,779.40x = 12,417,521.24
  5. Step 5: Solve for x
    x = 12,417,521.24/3,779.40
  6. Step 6: Final answer
    x = 3,285.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.