Home / 3,167.50-4,368.77-2,809.01

Finding the Fourth Proportional to 3,167.50, 4,368.77 and 2,809.01

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Solution

The fourth proportional to 3,167.50, 4,368.77 and 2,809.01 is: 3,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.50 : 4,368.77 = 2,809.01 : x
  2. Step 2: Convert to fraction form
    3,167.50/4,368.77 = 2,809.01/x
  3. Step 3: Cross multiply
    3,167.50x = 4,368.77 × 2,809.01
  4. Step 4: Simplify right side
    3,167.50x = 12,271,901.45
  5. Step 5: Solve for x
    x = 12,271,901.45/3,167.50
  6. Step 6: Final answer
    x = 3,874.32

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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.