Home / 3,559.16-4,911.85-1,987.35

Finding the Fourth Proportional to 3,559.16, 4,911.85 and 1,987.35

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Solution

The fourth proportional to 3,559.16, 4,911.85 and 1,987.35 is: 2,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.16 : 4,911.85 = 1,987.35 : x
  2. Step 2: Convert to fraction form
    3,559.16/4,911.85 = 1,987.35/x
  3. Step 3: Cross multiply
    3,559.16x = 4,911.85 × 1,987.35
  4. Step 4: Simplify right side
    3,559.16x = 9,761,565.10
  5. Step 5: Solve for x
    x = 9,761,565.10/3,559.16
  6. Step 6: Final answer
    x = 2,742.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.