Home / 1,790.07-2,685.10-557.55

Finding the Fourth Proportional to 1,790.07, 2,685.10 and 557.55

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Solution

The fourth proportional to 1,790.07, 2,685.10 and 557.55 is: 836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.07 : 2,685.10 = 557.55 : x
  2. Step 2: Convert to fraction form
    1,790.07/2,685.10 = 557.55/x
  3. Step 3: Cross multiply
    1,790.07x = 2,685.10 × 557.55
  4. Step 4: Simplify right side
    1,790.07x = 1,497,077.51
  5. Step 5: Solve for x
    x = 1,497,077.51/1,790.07
  6. Step 6: Final answer
    x = 836.32

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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.