Home / 1,317.70-1,817.13-944.02

Finding the Fourth Proportional to 1,317.70, 1,817.13 and 944.02

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Solution

The fourth proportional to 1,317.70, 1,817.13 and 944.02 is: 1,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.70 : 1,817.13 = 944.02 : x
  2. Step 2: Convert to fraction form
    1,317.70/1,817.13 = 944.02/x
  3. Step 3: Cross multiply
    1,317.70x = 1,817.13 × 944.02
  4. Step 4: Simplify right side
    1,317.70x = 1,715,407.06
  5. Step 5: Solve for x
    x = 1,715,407.06/1,317.70
  6. Step 6: Final answer
    x = 1,301.82

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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.