Home / 3,114.69-4,298.28-1,788.48

Finding the Fourth Proportional to 3,114.69, 4,298.28 and 1,788.48

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Solution

The fourth proportional to 3,114.69, 4,298.28 and 1,788.48 is: 2,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.69 : 4,298.28 = 1,788.48 : x
  2. Step 2: Convert to fraction form
    3,114.69/4,298.28 = 1,788.48/x
  3. Step 3: Cross multiply
    3,114.69x = 4,298.28 × 1,788.48
  4. Step 4: Simplify right side
    3,114.69x = 7,687,378.87
  5. Step 5: Solve for x
    x = 7,687,378.87/3,114.69
  6. Step 6: Final answer
    x = 2,468.10

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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.