Home / 5,346.86-7,378.83-2,989.10

Finding the Fourth Proportional to 5,346.86, 7,378.83 and 2,989.10

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Solution

The fourth proportional to 5,346.86, 7,378.83 and 2,989.10 is: 4,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.86 : 7,378.83 = 2,989.10 : x
  2. Step 2: Convert to fraction form
    5,346.86/7,378.83 = 2,989.10/x
  3. Step 3: Cross multiply
    5,346.86x = 7,378.83 × 2,989.10
  4. Step 4: Simplify right side
    5,346.86x = 22,056,060.75
  5. Step 5: Solve for x
    x = 22,056,060.75/5,346.86
  6. Step 6: Final answer
    x = 4,125.05

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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.