Home / 5,343.63-7,374.07-2,985.79

Finding the Fourth Proportional to 5,343.63, 7,374.07 and 2,985.79

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Solution

The fourth proportional to 5,343.63, 7,374.07 and 2,985.79 is: 4,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.63 : 7,374.07 = 2,985.79 : x
  2. Step 2: Convert to fraction form
    5,343.63/7,374.07 = 2,985.79/x
  3. Step 3: Cross multiply
    5,343.63x = 7,374.07 × 2,985.79
  4. Step 4: Simplify right side
    5,343.63x = 22,017,372.67
  5. Step 5: Solve for x
    x = 22,017,372.67/5,343.63
  6. Step 6: Final answer
    x = 4,120.31

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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.