Home / 7,151.07-10,722.95-2,989.94

Finding the Fourth Proportional to 7,151.07, 10,722.95 and 2,989.94

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Solution

The fourth proportional to 7,151.07, 10,722.95 and 2,989.94 is: 4,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.07 : 10,722.95 = 2,989.94 : x
  2. Step 2: Convert to fraction form
    7,151.07/10,722.95 = 2,989.94/x
  3. Step 3: Cross multiply
    7,151.07x = 10,722.95 × 2,989.94
  4. Step 4: Simplify right side
    7,151.07x = 32,060,988.98
  5. Step 5: Solve for x
    x = 32,060,988.98/7,151.07
  6. Step 6: Final answer
    x = 4,483.38

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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.