Home / 1,525.18-2,285.62-722.90

Finding the Fourth Proportional to 1,525.18, 2,285.62 and 722.90

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Solution

The fourth proportional to 1,525.18, 2,285.62 and 722.90 is: 1,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.18 : 2,285.62 = 722.90 : x
  2. Step 2: Convert to fraction form
    1,525.18/2,285.62 = 722.90/x
  3. Step 3: Cross multiply
    1,525.18x = 2,285.62 × 722.90
  4. Step 4: Simplify right side
    1,525.18x = 1,652,274.70
  5. Step 5: Solve for x
    x = 1,652,274.70/1,525.18
  6. Step 6: Final answer
    x = 1,083.33

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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.