Home / 5,325.37-7,987.80-1,815.23

Finding the Fourth Proportional to 5,325.37, 7,987.80 and 1,815.23

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Solution

The fourth proportional to 5,325.37, 7,987.80 and 1,815.23 is: 2,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.37 : 7,987.80 = 1,815.23 : x
  2. Step 2: Convert to fraction form
    5,325.37/7,987.80 = 1,815.23/x
  3. Step 3: Cross multiply
    5,325.37x = 7,987.80 × 1,815.23
  4. Step 4: Simplify right side
    5,325.37x = 14,499,710.76
  5. Step 5: Solve for x
    x = 14,499,710.76/5,325.37
  6. Step 6: Final answer
    x = 2,722.76

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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.