Home / 5,298.70-7,311.72-2,940.76

Finding the Fourth Proportional to 5,298.70, 7,311.72 and 2,940.76

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Solution

The fourth proportional to 5,298.70, 7,311.72 and 2,940.76 is: 4,057.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.70 : 7,311.72 = 2,940.76 : x
  2. Step 2: Convert to fraction form
    5,298.70/7,311.72 = 2,940.76/x
  3. Step 3: Cross multiply
    5,298.70x = 7,311.72 × 2,940.76
  4. Step 4: Simplify right side
    5,298.70x = 21,502,013.71
  5. Step 5: Solve for x
    x = 21,502,013.71/5,298.70
  6. Step 6: Final answer
    x = 4,057.98

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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.