Home / 1,817.83-2,508.49-1,071.65

Finding the Fourth Proportional to 1,817.83, 2,508.49 and 1,071.65

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Solution

The fourth proportional to 1,817.83, 2,508.49 and 1,071.65 is: 1,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.83 : 2,508.49 = 1,071.65 : x
  2. Step 2: Convert to fraction form
    1,817.83/2,508.49 = 1,071.65/x
  3. Step 3: Cross multiply
    1,817.83x = 2,508.49 × 1,071.65
  4. Step 4: Simplify right side
    1,817.83x = 2,688,223.31
  5. Step 5: Solve for x
    x = 2,688,223.31/1,817.83
  6. Step 6: Final answer
    x = 1,478.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.