Home / 7,576.40-10,454.38-4,218.77

Finding the Fourth Proportional to 7,576.40, 10,454.38 and 4,218.77

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Solution

The fourth proportional to 7,576.40, 10,454.38 and 4,218.77 is: 5,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,576.40 : 10,454.38 = 4,218.77 : x
  2. Step 2: Convert to fraction form
    7,576.40/10,454.38 = 4,218.77/x
  3. Step 3: Cross multiply
    7,576.40x = 10,454.38 × 4,218.77
  4. Step 4: Simplify right side
    7,576.40x = 44,104,605.23
  5. Step 5: Solve for x
    x = 44,104,605.23/7,576.40
  6. Step 6: Final answer
    x = 5,821.31

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Half scale
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Double scale
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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.