Home / 3,531.20-5,290.35-1,653.65

Finding the Fourth Proportional to 3,531.20, 5,290.35 and 1,653.65

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Solution

The fourth proportional to 3,531.20, 5,290.35 and 1,653.65 is: 2,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.20 : 5,290.35 = 1,653.65 : x
  2. Step 2: Convert to fraction form
    3,531.20/5,290.35 = 1,653.65/x
  3. Step 3: Cross multiply
    3,531.20x = 5,290.35 × 1,653.65
  4. Step 4: Simplify right side
    3,531.20x = 8,748,374.46
  5. Step 5: Solve for x
    x = 8,748,374.46/3,531.20
  6. Step 6: Final answer
    x = 2,477.45

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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.