Home / 1,369.18-2,056.41-1,307.74

Finding the Fourth Proportional to 1,369.18, 2,056.41 and 1,307.74

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Solution

The fourth proportional to 1,369.18, 2,056.41 and 1,307.74 is: 1,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.18 : 2,056.41 = 1,307.74 : x
  2. Step 2: Convert to fraction form
    1,369.18/2,056.41 = 1,307.74/x
  3. Step 3: Cross multiply
    1,369.18x = 2,056.41 × 1,307.74
  4. Step 4: Simplify right side
    1,369.18x = 2,689,249.61
  5. Step 5: Solve for x
    x = 2,689,249.61/1,369.18
  6. Step 6: Final answer
    x = 1,964.13

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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.