Home / 1,871.10-2,582.28-1,085.13

Finding the Fourth Proportional to 1,871.10, 2,582.28 and 1,085.13

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Solution

The fourth proportional to 1,871.10, 2,582.28 and 1,085.13 is: 1,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.10 : 2,582.28 = 1,085.13 : x
  2. Step 2: Convert to fraction form
    1,871.10/2,582.28 = 1,085.13/x
  3. Step 3: Cross multiply
    1,871.10x = 2,582.28 × 1,085.13
  4. Step 4: Simplify right side
    1,871.10x = 2,802,109.50
  5. Step 5: Solve for x
    x = 2,802,109.50/1,871.10
  6. Step 6: Final answer
    x = 1,497.57

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1.5x scale

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.