Home / 1,340.08-2,007.81-1,047.47

Finding the Fourth Proportional to 1,340.08, 2,007.81 and 1,047.47

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Solution

The fourth proportional to 1,340.08, 2,007.81 and 1,047.47 is: 1,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.08 : 2,007.81 = 1,047.47 : x
  2. Step 2: Convert to fraction form
    1,340.08/2,007.81 = 1,047.47/x
  3. Step 3: Cross multiply
    1,340.08x = 2,007.81 × 1,047.47
  4. Step 4: Simplify right side
    1,340.08x = 2,103,110.70
  5. Step 5: Solve for x
    x = 2,103,110.70/1,340.08
  6. Step 6: Final answer
    x = 1,569.39

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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.