Home / 5,436.51-8,154.78-1,332.51

Finding the Fourth Proportional to 5,436.51, 8,154.78 and 1,332.51

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Solution

The fourth proportional to 5,436.51, 8,154.78 and 1,332.51 is: 1,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.51 : 8,154.78 = 1,332.51 : x
  2. Step 2: Convert to fraction form
    5,436.51/8,154.78 = 1,332.51/x
  3. Step 3: Cross multiply
    5,436.51x = 8,154.78 × 1,332.51
  4. Step 4: Simplify right side
    5,436.51x = 10,866,325.90
  5. Step 5: Solve for x
    x = 10,866,325.90/5,436.51
  6. Step 6: Final answer
    x = 1,998.77

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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.