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Finding the Fourth Proportional to 7,455, 10,287.90 and 4,313.01

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Solution

The fourth proportional to 7,455, 10,287.90 and 4,313.01 is: 5,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455 : 10,287.90 = 4,313.01 : x
  2. Step 2: Convert to fraction form
    7,455/10,287.90 = 4,313.01/x
  3. Step 3: Cross multiply
    7,455x = 10,287.90 × 4,313.01
  4. Step 4: Simplify right side
    7,455x = 44,371,815.58
  5. Step 5: Solve for x
    x = 44,371,815.58/7,455
  6. Step 6: Final answer
    x = 5,951.95

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1.5x scale

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.