Home / 1,631.32-2,447.39-477.07

Finding the Fourth Proportional to 1,631.32, 2,447.39 and 477.07

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Solution

The fourth proportional to 1,631.32, 2,447.39 and 477.07 is: 715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.32 : 2,447.39 = 477.07 : x
  2. Step 2: Convert to fraction form
    1,631.32/2,447.39 = 477.07/x
  3. Step 3: Cross multiply
    1,631.32x = 2,447.39 × 477.07
  4. Step 4: Simplify right side
    1,631.32x = 1,167,582.50
  5. Step 5: Solve for x
    x = 1,167,582.50/1,631.32
  6. Step 6: Final answer
    x = 715.73

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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.