Home / 5,815.07-8,045.90-5,070.58

Finding the Fourth Proportional to 5,815.07, 8,045.90 and 5,070.58

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Solution

The fourth proportional to 5,815.07, 8,045.90 and 5,070.58 is: 7,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.07 : 8,045.90 = 5,070.58 : x
  2. Step 2: Convert to fraction form
    5,815.07/8,045.90 = 5,070.58/x
  3. Step 3: Cross multiply
    5,815.07x = 8,045.90 × 5,070.58
  4. Step 4: Simplify right side
    5,815.07x = 40,797,379.62
  5. Step 5: Solve for x
    x = 40,797,379.62/5,815.07
  6. Step 6: Final answer
    x = 7,015.80

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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.