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Finding the Fourth Proportional to 1,663.45, 2,295.53 and 907.24

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Solution

The fourth proportional to 1,663.45, 2,295.53 and 907.24 is: 1,251.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.45 : 2,295.53 = 907.24 : x
  2. Step 2: Convert to fraction form
    1,663.45/2,295.53 = 907.24/x
  3. Step 3: Cross multiply
    1,663.45x = 2,295.53 × 907.24
  4. Step 4: Simplify right side
    1,663.45x = 2,082,596.64
  5. Step 5: Solve for x
    x = 2,082,596.64/1,663.45
  6. Step 6: Final answer
    x = 1,251.97

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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.