Home / 5,343.30-7,374.10-2,985.45

Finding the Fourth Proportional to 5,343.30, 7,374.10 and 2,985.45

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Solution

The fourth proportional to 5,343.30, 7,374.10 and 2,985.45 is: 4,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.30 : 7,374.10 = 2,985.45 : x
  2. Step 2: Convert to fraction form
    5,343.30/7,374.10 = 2,985.45/x
  3. Step 3: Cross multiply
    5,343.30x = 7,374.10 × 2,985.45
  4. Step 4: Simplify right side
    5,343.30x = 22,015,006.85
  5. Step 5: Solve for x
    x = 22,015,006.85/5,343.30
  6. Step 6: Final answer
    x = 4,120.11

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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.