Home / 1,395.13-2,095.07-1,239.29

Finding the Fourth Proportional to 1,395.13, 2,095.07 and 1,239.29

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Solution

The fourth proportional to 1,395.13, 2,095.07 and 1,239.29 is: 1,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.13 : 2,095.07 = 1,239.29 : x
  2. Step 2: Convert to fraction form
    1,395.13/2,095.07 = 1,239.29/x
  3. Step 3: Cross multiply
    1,395.13x = 2,095.07 × 1,239.29
  4. Step 4: Simplify right side
    1,395.13x = 2,596,393.10
  5. Step 5: Solve for x
    x = 2,596,393.10/1,395.13
  6. Step 6: Final answer
    x = 1,861.05

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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.