Home / 7,140.15-10,709.01-1,944.81

Finding the Fourth Proportional to 7,140.15, 10,709.01 and 1,944.81

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Solution

The fourth proportional to 7,140.15, 10,709.01 and 1,944.81 is: 2,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.15 : 10,709.01 = 1,944.81 : x
  2. Step 2: Convert to fraction form
    7,140.15/10,709.01 = 1,944.81/x
  3. Step 3: Cross multiply
    7,140.15x = 10,709.01 × 1,944.81
  4. Step 4: Simplify right side
    7,140.15x = 20,826,989.74
  5. Step 5: Solve for x
    x = 20,826,989.74/7,140.15
  6. Step 6: Final answer
    x = 2,916.88

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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.