Home / 1,871.98-2,582.75-1,085.87

Finding the Fourth Proportional to 1,871.98, 2,582.75 and 1,085.87

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Solution

The fourth proportional to 1,871.98, 2,582.75 and 1,085.87 is: 1,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.98 : 2,582.75 = 1,085.87 : x
  2. Step 2: Convert to fraction form
    1,871.98/2,582.75 = 1,085.87/x
  3. Step 3: Cross multiply
    1,871.98x = 2,582.75 × 1,085.87
  4. Step 4: Simplify right side
    1,871.98x = 2,804,530.74
  5. Step 5: Solve for x
    x = 2,804,530.74/1,871.98
  6. Step 6: Final answer
    x = 1,498.17

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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.