Home / 3,407.42-5,111.85-1,186.31

Finding the Fourth Proportional to 3,407.42, 5,111.85 and 1,186.31

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Solution

The fourth proportional to 3,407.42, 5,111.85 and 1,186.31 is: 1,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.42 : 5,111.85 = 1,186.31 : x
  2. Step 2: Convert to fraction form
    3,407.42/5,111.85 = 1,186.31/x
  3. Step 3: Cross multiply
    3,407.42x = 5,111.85 × 1,186.31
  4. Step 4: Simplify right side
    3,407.42x = 6,064,238.77
  5. Step 5: Solve for x
    x = 6,064,238.77/3,407.42
  6. Step 6: Final answer
    x = 1,779.72

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1.5x scale

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.