Home / 3,417.81-4,717.08-2,091.30

Finding the Fourth Proportional to 3,417.81, 4,717.08 and 2,091.30

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Solution

The fourth proportional to 3,417.81, 4,717.08 and 2,091.30 is: 2,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.81 : 4,717.08 = 2,091.30 : x
  2. Step 2: Convert to fraction form
    3,417.81/4,717.08 = 2,091.30/x
  3. Step 3: Cross multiply
    3,417.81x = 4,717.08 × 2,091.30
  4. Step 4: Simplify right side
    3,417.81x = 9,864,829.40
  5. Step 5: Solve for x
    x = 9,864,829.40/3,417.81
  6. Step 6: Final answer
    x = 2,886.30

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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.