Home / 1,301.09-1,948.40-1,085.63

Finding the Fourth Proportional to 1,301.09, 1,948.40 and 1,085.63

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Solution

The fourth proportional to 1,301.09, 1,948.40 and 1,085.63 is: 1,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.09 : 1,948.40 = 1,085.63 : x
  2. Step 2: Convert to fraction form
    1,301.09/1,948.40 = 1,085.63/x
  3. Step 3: Cross multiply
    1,301.09x = 1,948.40 × 1,085.63
  4. Step 4: Simplify right side
    1,301.09x = 2,115,240.93
  5. Step 5: Solve for x
    x = 2,115,240.93/1,301.09
  6. Step 6: Final answer
    x = 1,625.74

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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.