Home / 7,070.40-10,611.36-3,739.86

Finding the Fourth Proportional to 7,070.40, 10,611.36 and 3,739.86

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Solution

The fourth proportional to 7,070.40, 10,611.36 and 3,739.86 is: 5,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.40 : 10,611.36 = 3,739.86 : x
  2. Step 2: Convert to fraction form
    7,070.40/10,611.36 = 3,739.86/x
  3. Step 3: Cross multiply
    7,070.40x = 10,611.36 × 3,739.86
  4. Step 4: Simplify right side
    7,070.40x = 39,685,000.81
  5. Step 5: Solve for x
    x = 39,685,000.81/7,070.40
  6. Step 6: Final answer
    x = 5,612.84

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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.