Home / 7,045.81-9,722.51-4,212.62

Finding the Fourth Proportional to 7,045.81, 9,722.51 and 4,212.62

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Solution

The fourth proportional to 7,045.81, 9,722.51 and 4,212.62 is: 5,812.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.81 : 9,722.51 = 4,212.62 : x
  2. Step 2: Convert to fraction form
    7,045.81/9,722.51 = 4,212.62/x
  3. Step 3: Cross multiply
    7,045.81x = 9,722.51 × 4,212.62
  4. Step 4: Simplify right side
    7,045.81x = 40,957,215.77
  5. Step 5: Solve for x
    x = 40,957,215.77/7,045.81
  6. Step 6: Final answer
    x = 5,812.99

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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.