Home / 2,039.60-2,810.28-1,871.84

Finding the Fourth Proportional to 2,039.60, 2,810.28 and 1,871.84

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Solution

The fourth proportional to 2,039.60, 2,810.28 and 1,871.84 is: 2,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.60 : 2,810.28 = 1,871.84 : x
  2. Step 2: Convert to fraction form
    2,039.60/2,810.28 = 1,871.84/x
  3. Step 3: Cross multiply
    2,039.60x = 2,810.28 × 1,871.84
  4. Step 4: Simplify right side
    2,039.60x = 5,260,394.52
  5. Step 5: Solve for x
    x = 5,260,394.52/2,039.60
  6. Step 6: Final answer
    x = 2,579.13

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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.