Home / 3,014.79-4,160.39-1,688.51

Finding the Fourth Proportional to 3,014.79, 4,160.39 and 1,688.51

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Solution

The fourth proportional to 3,014.79, 4,160.39 and 1,688.51 is: 2,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.79 : 4,160.39 = 1,688.51 : x
  2. Step 2: Convert to fraction form
    3,014.79/4,160.39 = 1,688.51/x
  3. Step 3: Cross multiply
    3,014.79x = 4,160.39 × 1,688.51
  4. Step 4: Simplify right side
    3,014.79x = 7,024,830.87
  5. Step 5: Solve for x
    x = 7,024,830.87/3,014.79
  6. Step 6: Final answer
    x = 2,330.12

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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.