Home / 2,985.81-4,470.47-1,517.77

Finding the Fourth Proportional to 2,985.81, 4,470.47 and 1,517.77

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Solution

The fourth proportional to 2,985.81, 4,470.47 and 1,517.77 is: 2,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.81 : 4,470.47 = 1,517.77 : x
  2. Step 2: Convert to fraction form
    2,985.81/4,470.47 = 1,517.77/x
  3. Step 3: Cross multiply
    2,985.81x = 4,470.47 × 1,517.77
  4. Step 4: Simplify right side
    2,985.81x = 6,785,145.25
  5. Step 5: Solve for x
    x = 6,785,145.25/2,985.81
  6. Step 6: Final answer
    x = 2,272.46

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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.