Home / 2,666.32-3,995.83-1,690.67

Finding the Fourth Proportional to 2,666.32, 3,995.83 and 1,690.67

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Solution

The fourth proportional to 2,666.32, 3,995.83 and 1,690.67 is: 2,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.32 : 3,995.83 = 1,690.67 : x
  2. Step 2: Convert to fraction form
    2,666.32/3,995.83 = 1,690.67/x
  3. Step 3: Cross multiply
    2,666.32x = 3,995.83 × 1,690.67
  4. Step 4: Simplify right side
    2,666.32x = 6,755,642.01
  5. Step 5: Solve for x
    x = 6,755,642.01/2,666.32
  6. Step 6: Final answer
    x = 2,533.70

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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.