Home / 3,153.60-4,348.56-1,973.28

Finding the Fourth Proportional to 3,153.60, 4,348.56 and 1,973.28

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Solution

The fourth proportional to 3,153.60, 4,348.56 and 1,973.28 is: 2,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.60 : 4,348.56 = 1,973.28 : x
  2. Step 2: Convert to fraction form
    3,153.60/4,348.56 = 1,973.28/x
  3. Step 3: Cross multiply
    3,153.60x = 4,348.56 × 1,973.28
  4. Step 4: Simplify right side
    3,153.60x = 8,580,926.48
  5. Step 5: Solve for x
    x = 8,580,926.48/3,153.60
  6. Step 6: Final answer
    x = 2,720.99

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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.