Home / 1,378.04-2,068.06-1,013.80

Finding the Fourth Proportional to 1,378.04, 2,068.06 and 1,013.80

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Solution

The fourth proportional to 1,378.04, 2,068.06 and 1,013.80 is: 1,521.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378.04 : 2,068.06 = 1,013.80 : x
  2. Step 2: Convert to fraction form
    1,378.04/2,068.06 = 1,013.80/x
  3. Step 3: Cross multiply
    1,378.04x = 2,068.06 × 1,013.80
  4. Step 4: Simplify right side
    1,378.04x = 2,096,599.23
  5. Step 5: Solve for x
    x = 2,096,599.23/1,378.04
  6. Step 6: Final answer
    x = 1,521.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.