Home / 1,663.17-2,295.29-955.13

Finding the Fourth Proportional to 1,663.17, 2,295.29 and 955.13

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Solution

The fourth proportional to 1,663.17, 2,295.29 and 955.13 is: 1,318.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.17 : 2,295.29 = 955.13 : x
  2. Step 2: Convert to fraction form
    1,663.17/2,295.29 = 955.13/x
  3. Step 3: Cross multiply
    1,663.17x = 2,295.29 × 955.13
  4. Step 4: Simplify right side
    1,663.17x = 2,192,285.88
  5. Step 5: Solve for x
    x = 2,192,285.88/1,663.17
  6. Step 6: Final answer
    x = 1,318.14

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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.