Home / 1,310.48-1,806.63-1,110.51

Finding the Fourth Proportional to 1,310.48, 1,806.63 and 1,110.51

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Solution

The fourth proportional to 1,310.48, 1,806.63 and 1,110.51 is: 1,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.48 : 1,806.63 = 1,110.51 : x
  2. Step 2: Convert to fraction form
    1,310.48/1,806.63 = 1,110.51/x
  3. Step 3: Cross multiply
    1,310.48x = 1,806.63 × 1,110.51
  4. Step 4: Simplify right side
    1,310.48x = 2,006,279.64
  5. Step 5: Solve for x
    x = 2,006,279.64/1,310.48
  6. Step 6: Final answer
    x = 1,530.95

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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.