Home / 5,124.16-7,687.45-1,661.41

Finding the Fourth Proportional to 5,124.16, 7,687.45 and 1,661.41

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Solution

The fourth proportional to 5,124.16, 7,687.45 and 1,661.41 is: 2,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.16 : 7,687.45 = 1,661.41 : x
  2. Step 2: Convert to fraction form
    5,124.16/7,687.45 = 1,661.41/x
  3. Step 3: Cross multiply
    5,124.16x = 7,687.45 × 1,661.41
  4. Step 4: Simplify right side
    5,124.16x = 12,772,006.30
  5. Step 5: Solve for x
    x = 12,772,006.30/5,124.16
  6. Step 6: Final answer
    x = 2,492.51

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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.