Home / 5,343.80-8,015.70-1,881.40

Finding the Fourth Proportional to 5,343.80, 8,015.70 and 1,881.40

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Solution

The fourth proportional to 5,343.80, 8,015.70 and 1,881.40 is: 2,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.80 : 8,015.70 = 1,881.40 : x
  2. Step 2: Convert to fraction form
    5,343.80/8,015.70 = 1,881.40/x
  3. Step 3: Cross multiply
    5,343.80x = 8,015.70 × 1,881.40
  4. Step 4: Simplify right side
    5,343.80x = 15,080,737.98
  5. Step 5: Solve for x
    x = 15,080,737.98/5,343.80
  6. Step 6: Final answer
    x = 2,822.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.