Home / 1,871.57-2,582.76-1,085.77

Finding the Fourth Proportional to 1,871.57, 2,582.76 and 1,085.77

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Solution

The fourth proportional to 1,871.57, 2,582.76 and 1,085.77 is: 1,498.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.57 : 2,582.76 = 1,085.77 : x
  2. Step 2: Convert to fraction form
    1,871.57/2,582.76 = 1,085.77/x
  3. Step 3: Cross multiply
    1,871.57x = 2,582.76 × 1,085.77
  4. Step 4: Simplify right side
    1,871.57x = 2,804,283.33
  5. Step 5: Solve for x
    x = 2,804,283.33/1,871.57
  6. Step 6: Final answer
    x = 1,498.36

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Double scale
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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.