Home / 5,299.84-7,312.19-3,060.90

Finding the Fourth Proportional to 5,299.84, 7,312.19 and 3,060.90

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Solution

The fourth proportional to 5,299.84, 7,312.19 and 3,060.90 is: 4,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.84 : 7,312.19 = 3,060.90 : x
  2. Step 2: Convert to fraction form
    5,299.84/7,312.19 = 3,060.90/x
  3. Step 3: Cross multiply
    5,299.84x = 7,312.19 × 3,060.90
  4. Step 4: Simplify right side
    5,299.84x = 22,381,882.37
  5. Step 5: Solve for x
    x = 22,381,882.37/5,299.84
  6. Step 6: Final answer
    x = 4,223.12

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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.