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Finding the Fourth Proportional to 1,341.51, 2,012.27 and 763.17

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Solution

The fourth proportional to 1,341.51, 2,012.27 and 763.17 is: 1,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.51 : 2,012.27 = 763.17 : x
  2. Step 2: Convert to fraction form
    1,341.51/2,012.27 = 763.17/x
  3. Step 3: Cross multiply
    1,341.51x = 2,012.27 × 763.17
  4. Step 4: Simplify right side
    1,341.51x = 1,535,706.20
  5. Step 5: Solve for x
    x = 1,535,706.20/1,341.51
  6. Step 6: Final answer
    x = 1,144.76

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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.