Home / 2,963.60-4,089.72-1,637.21

Finding the Fourth Proportional to 2,963.60, 4,089.72 and 1,637.21

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Solution

The fourth proportional to 2,963.60, 4,089.72 and 1,637.21 is: 2,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.60 : 4,089.72 = 1,637.21 : x
  2. Step 2: Convert to fraction form
    2,963.60/4,089.72 = 1,637.21/x
  3. Step 3: Cross multiply
    2,963.60x = 4,089.72 × 1,637.21
  4. Step 4: Simplify right side
    2,963.60x = 6,695,710.03
  5. Step 5: Solve for x
    x = 6,695,710.03/2,963.60
  6. Step 6: Final answer
    x = 2,259.32

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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.