Home / 1,666.71-2,298.38-1,382.67

Finding the Fourth Proportional to 1,666.71, 2,298.38 and 1,382.67

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Solution

The fourth proportional to 1,666.71, 2,298.38 and 1,382.67 is: 1,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.71 : 2,298.38 = 1,382.67 : x
  2. Step 2: Convert to fraction form
    1,666.71/2,298.38 = 1,382.67/x
  3. Step 3: Cross multiply
    1,666.71x = 2,298.38 × 1,382.67
  4. Step 4: Simplify right side
    1,666.71x = 3,177,894.16
  5. Step 5: Solve for x
    x = 3,177,894.16/1,666.71
  6. Step 6: Final answer
    x = 1,906.69

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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.