Home / 2,816.31-3,886.27-1,637.45

Finding the Fourth Proportional to 2,816.31, 3,886.27 and 1,637.45

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Solution

The fourth proportional to 2,816.31, 3,886.27 and 1,637.45 is: 2,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.31 : 3,886.27 = 1,637.45 : x
  2. Step 2: Convert to fraction form
    2,816.31/3,886.27 = 1,637.45/x
  3. Step 3: Cross multiply
    2,816.31x = 3,886.27 × 1,637.45
  4. Step 4: Simplify right side
    2,816.31x = 6,363,549.29
  5. Step 5: Solve for x
    x = 6,363,549.29/2,816.31
  6. Step 6: Final answer
    x = 2,259.53

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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.