Home / 7,250.70-10,857.59-4,778.01

Finding the Fourth Proportional to 7,250.70, 10,857.59 and 4,778.01

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Solution

The fourth proportional to 7,250.70, 10,857.59 and 4,778.01 is: 7,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.70 : 10,857.59 = 4,778.01 : x
  2. Step 2: Convert to fraction form
    7,250.70/10,857.59 = 4,778.01/x
  3. Step 3: Cross multiply
    7,250.70x = 10,857.59 × 4,778.01
  4. Step 4: Simplify right side
    7,250.70x = 51,877,649.71
  5. Step 5: Solve for x
    x = 51,877,649.71/7,250.70
  6. Step 6: Final answer
    x = 7,154.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.