Home / 1,520.08-2,277.60-999.43

Finding the Fourth Proportional to 1,520.08, 2,277.60 and 999.43

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Solution

The fourth proportional to 1,520.08, 2,277.60 and 999.43 is: 1,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.08 : 2,277.60 = 999.43 : x
  2. Step 2: Convert to fraction form
    1,520.08/2,277.60 = 999.43/x
  3. Step 3: Cross multiply
    1,520.08x = 2,277.60 × 999.43
  4. Step 4: Simplify right side
    1,520.08x = 2,276,301.77
  5. Step 5: Solve for x
    x = 2,276,301.77/1,520.08
  6. Step 6: Final answer
    x = 1,497.49

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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.