Home / 2,866.08-3,955.09-1,607.20

Finding the Fourth Proportional to 2,866.08, 3,955.09 and 1,607.20

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Solution

The fourth proportional to 2,866.08, 3,955.09 and 1,607.20 is: 2,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.08 : 3,955.09 = 1,607.20 : x
  2. Step 2: Convert to fraction form
    2,866.08/3,955.09 = 1,607.20/x
  3. Step 3: Cross multiply
    2,866.08x = 3,955.09 × 1,607.20
  4. Step 4: Simplify right side
    2,866.08x = 6,356,627.60
  5. Step 5: Solve for x
    x = 6,356,627.60/2,866.08
  6. Step 6: Final answer
    x = 2,217.89

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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.