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Finding the Fourth Proportional to 1,301.09, 1,950.26 and 807.49

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Solution

The fourth proportional to 1,301.09, 1,950.26 and 807.49 is: 1,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.09 : 1,950.26 = 807.49 : x
  2. Step 2: Convert to fraction form
    1,301.09/1,950.26 = 807.49/x
  3. Step 3: Cross multiply
    1,301.09x = 1,950.26 × 807.49
  4. Step 4: Simplify right side
    1,301.09x = 1,574,822.34
  5. Step 5: Solve for x
    x = 1,574,822.34/1,301.09
  6. Step 6: Final answer
    x = 1,210.39

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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.