Home / 7,131.84-10,688.04-4,359.48

Finding the Fourth Proportional to 7,131.84, 10,688.04 and 4,359.48

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Solution

The fourth proportional to 7,131.84, 10,688.04 and 4,359.48 is: 6,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.84 : 10,688.04 = 4,359.48 : x
  2. Step 2: Convert to fraction form
    7,131.84/10,688.04 = 4,359.48/x
  3. Step 3: Cross multiply
    7,131.84x = 10,688.04 × 4,359.48
  4. Step 4: Simplify right side
    7,131.84x = 46,594,296.62
  5. Step 5: Solve for x
    x = 46,594,296.62/7,131.84
  6. Step 6: Final answer
    x = 6,533.28

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1.5x scale

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.