Home / 2,041.76-2,815.08-1,689.14

Finding the Fourth Proportional to 2,041.76, 2,815.08 and 1,689.14

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Solution

The fourth proportional to 2,041.76, 2,815.08 and 1,689.14 is: 2,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,041.76 : 2,815.08 = 1,689.14 : x
  2. Step 2: Convert to fraction form
    2,041.76/2,815.08 = 1,689.14/x
  3. Step 3: Cross multiply
    2,041.76x = 2,815.08 × 1,689.14
  4. Step 4: Simplify right side
    2,041.76x = 4,755,064.23
  5. Step 5: Solve for x
    x = 4,755,064.23/2,041.76
  6. Step 6: Final answer
    x = 2,328.90

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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.