Home / 5,485.41-7,569.92-3,127.70

Finding the Fourth Proportional to 5,485.41, 7,569.92 and 3,127.70

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Solution

The fourth proportional to 5,485.41, 7,569.92 and 3,127.70 is: 4,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.41 : 7,569.92 = 3,127.70 : x
  2. Step 2: Convert to fraction form
    5,485.41/7,569.92 = 3,127.70/x
  3. Step 3: Cross multiply
    5,485.41x = 7,569.92 × 3,127.70
  4. Step 4: Simplify right side
    5,485.41x = 23,676,465.53
  5. Step 5: Solve for x
    x = 23,676,465.53/5,485.41
  6. Step 6: Final answer
    x = 4,316.26

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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.