Home / 2,689.05-3,710.23-1,569.35

Finding the Fourth Proportional to 2,689.05, 3,710.23 and 1,569.35

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Solution

The fourth proportional to 2,689.05, 3,710.23 and 1,569.35 is: 2,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.05 : 3,710.23 = 1,569.35 : x
  2. Step 2: Convert to fraction form
    2,689.05/3,710.23 = 1,569.35/x
  3. Step 3: Cross multiply
    2,689.05x = 3,710.23 × 1,569.35
  4. Step 4: Simplify right side
    2,689.05x = 5,822,630.90
  5. Step 5: Solve for x
    x = 5,822,630.90/2,689.05
  6. Step 6: Final answer
    x = 2,165.32

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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.