Home / 7,315.28-10,971.80-2,384.90

Finding the Fourth Proportional to 7,315.28, 10,971.80 and 2,384.90

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Solution

The fourth proportional to 7,315.28, 10,971.80 and 2,384.90 is: 3,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.28 : 10,971.80 = 2,384.90 : x
  2. Step 2: Convert to fraction form
    7,315.28/10,971.80 = 2,384.90/x
  3. Step 3: Cross multiply
    7,315.28x = 10,971.80 × 2,384.90
  4. Step 4: Simplify right side
    7,315.28x = 26,166,645.82
  5. Step 5: Solve for x
    x = 26,166,645.82/7,315.28
  6. Step 6: Final answer
    x = 3,576.98

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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.