Home / 1,628.23-2,429.42-1,590.90

Finding the Fourth Proportional to 1,628.23, 2,429.42 and 1,590.90

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Solution

The fourth proportional to 1,628.23, 2,429.42 and 1,590.90 is: 2,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.23 : 2,429.42 = 1,590.90 : x
  2. Step 2: Convert to fraction form
    1,628.23/2,429.42 = 1,590.90/x
  3. Step 3: Cross multiply
    1,628.23x = 2,429.42 × 1,590.90
  4. Step 4: Simplify right side
    1,628.23x = 3,864,964.28
  5. Step 5: Solve for x
    x = 3,864,964.28/1,628.23
  6. Step 6: Final answer
    x = 2,373.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.