Home / 7,340.04-10,129.80-4,196.40

Finding the Fourth Proportional to 7,340.04, 10,129.80 and 4,196.40

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Solution

The fourth proportional to 7,340.04, 10,129.80 and 4,196.40 is: 5,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.04 : 10,129.80 = 4,196.40 : x
  2. Step 2: Convert to fraction form
    7,340.04/10,129.80 = 4,196.40/x
  3. Step 3: Cross multiply
    7,340.04x = 10,129.80 × 4,196.40
  4. Step 4: Simplify right side
    7,340.04x = 42,508,692.72
  5. Step 5: Solve for x
    x = 42,508,692.72/7,340.04
  6. Step 6: Final answer
    x = 5,791.34

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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.