Home / 3,320.47-4,983.77-1,678.16

Finding the Fourth Proportional to 3,320.47, 4,983.77 and 1,678.16

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Solution

The fourth proportional to 3,320.47, 4,983.77 and 1,678.16 is: 2,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.47 : 4,983.77 = 1,678.16 : x
  2. Step 2: Convert to fraction form
    3,320.47/4,983.77 = 1,678.16/x
  3. Step 3: Cross multiply
    3,320.47x = 4,983.77 × 1,678.16
  4. Step 4: Simplify right side
    3,320.47x = 8,363,580.12
  5. Step 5: Solve for x
    x = 8,363,580.12/3,320.47
  6. Step 6: Final answer
    x = 2,518.80

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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.