Home / 1,790.16-2,685.60-1,615.92

Finding the Fourth Proportional to 1,790.16, 2,685.60 and 1,615.92

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Solution

The fourth proportional to 1,790.16, 2,685.60 and 1,615.92 is: 2,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.16 : 2,685.60 = 1,615.92 : x
  2. Step 2: Convert to fraction form
    1,790.16/2,685.60 = 1,615.92/x
  3. Step 3: Cross multiply
    1,790.16x = 2,685.60 × 1,615.92
  4. Step 4: Simplify right side
    1,790.16x = 4,339,714.75
  5. Step 5: Solve for x
    x = 4,339,714.75/1,790.16
  6. Step 6: Final answer
    x = 2,424.20

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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.