Home / 1,439.96-2,000.20-1,417.62

Finding the Fourth Proportional to 1,439.96, 2,000.20 and 1,417.62

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Solution

The fourth proportional to 1,439.96, 2,000.20 and 1,417.62 is: 1,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.96 : 2,000.20 = 1,417.62 : x
  2. Step 2: Convert to fraction form
    1,439.96/2,000.20 = 1,417.62/x
  3. Step 3: Cross multiply
    1,439.96x = 2,000.20 × 1,417.62
  4. Step 4: Simplify right side
    1,439.96x = 2,835,523.52
  5. Step 5: Solve for x
    x = 2,835,523.52/1,439.96
  6. Step 6: Final answer
    x = 1,969.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.