Home / 3,434.40-5,151.96-1,125.36

Finding the Fourth Proportional to 3,434.40, 5,151.96 and 1,125.36

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Solution

The fourth proportional to 3,434.40, 5,151.96 and 1,125.36 is: 1,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.40 : 5,151.96 = 1,125.36 : x
  2. Step 2: Convert to fraction form
    3,434.40/5,151.96 = 1,125.36/x
  3. Step 3: Cross multiply
    3,434.40x = 5,151.96 × 1,125.36
  4. Step 4: Simplify right side
    3,434.40x = 5,797,809.71
  5. Step 5: Solve for x
    x = 5,797,809.71/3,434.40
  6. Step 6: Final answer
    x = 1,688.16

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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.