Home / 7,755.18-10,702.08-4,218.36

Finding the Fourth Proportional to 7,755.18, 10,702.08 and 4,218.36

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Solution

The fourth proportional to 7,755.18, 10,702.08 and 4,218.36 is: 5,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.18 : 10,702.08 = 4,218.36 : x
  2. Step 2: Convert to fraction form
    7,755.18/10,702.08 = 4,218.36/x
  3. Step 3: Cross multiply
    7,755.18x = 10,702.08 × 4,218.36
  4. Step 4: Simplify right side
    7,755.18x = 45,145,226.19
  5. Step 5: Solve for x
    x = 45,145,226.19/7,755.18
  6. Step 6: Final answer
    x = 5,821.30

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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.