Home / 1,411.04-2,107.18-1,395.78

Finding the Fourth Proportional to 1,411.04, 2,107.18 and 1,395.78

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Solution

The fourth proportional to 1,411.04, 2,107.18 and 1,395.78 is: 2,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.04 : 2,107.18 = 1,395.78 : x
  2. Step 2: Convert to fraction form
    1,411.04/2,107.18 = 1,395.78/x
  3. Step 3: Cross multiply
    1,411.04x = 2,107.18 × 1,395.78
  4. Step 4: Simplify right side
    1,411.04x = 2,941,159.70
  5. Step 5: Solve for x
    x = 2,941,159.70/1,411.04
  6. Step 6: Final answer
    x = 2,084.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.