Home / 2,866.21-3,955.09-1,607.19

Finding the Fourth Proportional to 2,866.21, 3,955.09 and 1,607.19

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Solution

The fourth proportional to 2,866.21, 3,955.09 and 1,607.19 is: 2,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.21 : 3,955.09 = 1,607.19 : x
  2. Step 2: Convert to fraction form
    2,866.21/3,955.09 = 1,607.19/x
  3. Step 3: Cross multiply
    2,866.21x = 3,955.09 × 1,607.19
  4. Step 4: Simplify right side
    2,866.21x = 6,356,581.10
  5. Step 5: Solve for x
    x = 6,356,581.10/2,866.21
  6. Step 6: Final answer
    x = 2,217.77

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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.