Home / 7,478.80-10,320.36-4,336

Finding the Fourth Proportional to 7,478.80, 10,320.36 and 4,336

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Solution

The fourth proportional to 7,478.80, 10,320.36 and 4,336 is: 5,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.80 : 10,320.36 = 4,336 : x
  2. Step 2: Convert to fraction form
    7,478.80/10,320.36 = 4,336/x
  3. Step 3: Cross multiply
    7,478.80x = 10,320.36 × 4,336
  4. Step 4: Simplify right side
    7,478.80x = 44,749,080.96
  5. Step 5: Solve for x
    x = 44,749,080.96/7,478.80
  6. Step 6: Final answer
    x = 5,983.46

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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.