Home / 2,689.04-3,711.13-1,569.76

Finding the Fourth Proportional to 2,689.04, 3,711.13 and 1,569.76

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Solution

The fourth proportional to 2,689.04, 3,711.13 and 1,569.76 is: 2,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.04 : 3,711.13 = 1,569.76 : x
  2. Step 2: Convert to fraction form
    2,689.04/3,711.13 = 1,569.76/x
  3. Step 3: Cross multiply
    2,689.04x = 3,711.13 × 1,569.76
  4. Step 4: Simplify right side
    2,689.04x = 5,825,570.23
  5. Step 5: Solve for x
    x = 5,825,570.23/2,689.04
  6. Step 6: Final answer
    x = 2,166.41

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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.