Home / 3,060.76-4,588.40-1,111.60

Finding the Fourth Proportional to 3,060.76, 4,588.40 and 1,111.60

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Solution

The fourth proportional to 3,060.76, 4,588.40 and 1,111.60 is: 1,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.76 : 4,588.40 = 1,111.60 : x
  2. Step 2: Convert to fraction form
    3,060.76/4,588.40 = 1,111.60/x
  3. Step 3: Cross multiply
    3,060.76x = 4,588.40 × 1,111.60
  4. Step 4: Simplify right side
    3,060.76x = 5,100,445.28
  5. Step 5: Solve for x
    x = 5,100,445.28/3,060.76
  6. Step 6: Final answer
    x = 1,666.40

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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.