Home / 4,060.90-6,090.90-1,139.32

Finding the Fourth Proportional to 4,060.90, 6,090.90 and 1,139.32

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Solution

The fourth proportional to 4,060.90, 6,090.90 and 1,139.32 is: 1,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,060.90 : 6,090.90 = 1,139.32 : x
  2. Step 2: Convert to fraction form
    4,060.90/6,090.90 = 1,139.32/x
  3. Step 3: Cross multiply
    4,060.90x = 6,090.90 × 1,139.32
  4. Step 4: Simplify right side
    4,060.90x = 6,939,484.19
  5. Step 5: Solve for x
    x = 6,939,484.19/4,060.90
  6. Step 6: Final answer
    x = 1,708.85

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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.