Home / 3,165.49-4,746.79-1,315.50

Finding the Fourth Proportional to 3,165.49, 4,746.79 and 1,315.50

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Solution

The fourth proportional to 3,165.49, 4,746.79 and 1,315.50 is: 1,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.49 : 4,746.79 = 1,315.50 : x
  2. Step 2: Convert to fraction form
    3,165.49/4,746.79 = 1,315.50/x
  3. Step 3: Cross multiply
    3,165.49x = 4,746.79 × 1,315.50
  4. Step 4: Simplify right side
    3,165.49x = 6,244,415.26
  5. Step 5: Solve for x
    x = 6,244,415.26/3,165.49
  6. Step 6: Final answer
    x = 1,972.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.