Home / 3,439.39-5,159.28-1,130.89

Finding the Fourth Proportional to 3,439.39, 5,159.28 and 1,130.89

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Solution

The fourth proportional to 3,439.39, 5,159.28 and 1,130.89 is: 1,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.39 : 5,159.28 = 1,130.89 : x
  2. Step 2: Convert to fraction form
    3,439.39/5,159.28 = 1,130.89/x
  3. Step 3: Cross multiply
    3,439.39x = 5,159.28 × 1,130.89
  4. Step 4: Simplify right side
    3,439.39x = 5,834,578.16
  5. Step 5: Solve for x
    x = 5,834,578.16/3,439.39
  6. Step 6: Final answer
    x = 1,696.40

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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.