Home / 7,642.37-10,543.84-4,284.72

Finding the Fourth Proportional to 7,642.37, 10,543.84 and 4,284.72

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Solution

The fourth proportional to 7,642.37, 10,543.84 and 4,284.72 is: 5,911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.37 : 10,543.84 = 4,284.72 : x
  2. Step 2: Convert to fraction form
    7,642.37/10,543.84 = 4,284.72/x
  3. Step 3: Cross multiply
    7,642.37x = 10,543.84 × 4,284.72
  4. Step 4: Simplify right side
    7,642.37x = 45,177,391.41
  5. Step 5: Solve for x
    x = 45,177,391.41/7,642.37
  6. Step 6: Final answer
    x = 5,911.44

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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.