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Finding the Fourth Proportional to 5,007.79, 7,511.10 and 1,310.37

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Solution

The fourth proportional to 5,007.79, 7,511.10 and 1,310.37 is: 1,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.79 : 7,511.10 = 1,310.37 : x
  2. Step 2: Convert to fraction form
    5,007.79/7,511.10 = 1,310.37/x
  3. Step 3: Cross multiply
    5,007.79x = 7,511.10 × 1,310.37
  4. Step 4: Simplify right side
    5,007.79x = 9,842,342.16
  5. Step 5: Solve for x
    x = 9,842,342.16/5,007.79
  6. Step 6: Final answer
    x = 1,965.41

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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.