Home / 1,689.19-2,331.08-1,026.27

Finding the Fourth Proportional to 1,689.19, 2,331.08 and 1,026.27

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Solution

The fourth proportional to 1,689.19, 2,331.08 and 1,026.27 is: 1,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.19 : 2,331.08 = 1,026.27 : x
  2. Step 2: Convert to fraction form
    1,689.19/2,331.08 = 1,026.27/x
  3. Step 3: Cross multiply
    1,689.19x = 2,331.08 × 1,026.27
  4. Step 4: Simplify right side
    1,689.19x = 2,392,316.19
  5. Step 5: Solve for x
    x = 2,392,316.19/1,689.19
  6. Step 6: Final answer
    x = 1,416.25

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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.