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Finding the Fourth Proportional to 5,661.55, 7,807.44 and 4,400.38

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Solution

The fourth proportional to 5,661.55, 7,807.44 and 4,400.38 is: 6,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.55 : 7,807.44 = 4,400.38 : x
  2. Step 2: Convert to fraction form
    5,661.55/7,807.44 = 4,400.38/x
  3. Step 3: Cross multiply
    5,661.55x = 7,807.44 × 4,400.38
  4. Step 4: Simplify right side
    5,661.55x = 34,355,702.83
  5. Step 5: Solve for x
    x = 34,355,702.83/5,661.55
  6. Step 6: Final answer
    x = 6,068.25

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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.