Home / 2,860.35-3,947.99-1,666.32

Finding the Fourth Proportional to 2,860.35, 3,947.99 and 1,666.32

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Solution

The fourth proportional to 2,860.35, 3,947.99 and 1,666.32 is: 2,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.35 : 3,947.99 = 1,666.32 : x
  2. Step 2: Convert to fraction form
    2,860.35/3,947.99 = 1,666.32/x
  3. Step 3: Cross multiply
    2,860.35x = 3,947.99 × 1,666.32
  4. Step 4: Simplify right side
    2,860.35x = 6,578,606.37
  5. Step 5: Solve for x
    x = 6,578,606.37/2,860.35
  6. Step 6: Final answer
    x = 2,299.93

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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.