Home / 7,159.30-9,880.85-3,973.32

Finding the Fourth Proportional to 7,159.30, 9,880.85 and 3,973.32

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Solution

The fourth proportional to 7,159.30, 9,880.85 and 3,973.32 is: 5,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.30 : 9,880.85 = 3,973.32 : x
  2. Step 2: Convert to fraction form
    7,159.30/9,880.85 = 3,973.32/x
  3. Step 3: Cross multiply
    7,159.30x = 9,880.85 × 3,973.32
  4. Step 4: Simplify right side
    7,159.30x = 39,259,788.86
  5. Step 5: Solve for x
    x = 39,259,788.86/7,159.30
  6. Step 6: Final answer
    x = 5,483.75

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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.